TY  - JOUR
AU  - Orlić, Jovana
AU  - Aničić-Urošević, Mira
AU  - Vergel, Konstantin
AU  - Zinicovscaia, Inga
AU  - Stojadinović, Sanja M.
AU  - Gržetić, Ivan
AU  - Ilijević, Konstantin
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5007
AB  - Conventionally used spectrometric techniques of inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma optical emission spectrometry (ICP-MS) usually involve time-consuming sample preparation procedure of a sample dissolution which requires the usage of aggressive and toxic chemicals. The need for suitable and sustainable analytical methods for direct multi-elemental analysis of plant samples has been increased in recent years. Spectrometric techniques for direct sample analysis, instrumental neutron activation analysis (INAA) and X-ray fluorescence (XRF) have been applied in environmental studies and various fields of screening tests. Nevertheless, these techniques are not commonly used for plant sample analysis and their performances need to be evaluated. This research aimed to assess how reliable non-destructive techniques are in the determination of elements in plants compared to conventionally used spectrometric techniques. A total of 49 plant samples of four conifer species (Pinus nigra, Abies alba, Taxus baccata and Larix decidua) were measured using two conventionally applied (ICP-MS, ICP-OES) and two non-destructive techniques (wavelength dispersive XRF (WD-XRF), INAA). The comparison was performed by investigation of relative ratios of concentrations and by correlation analysis. Moreover, precision of the techniques was examined and compared. The quality control included analysis of NIST pine needles certified reference material (1575a) using all examined techniques. Our results suggest that additional analytical and quality control steps are necessary for reaching the highest accuracy of multi-elemental analysis.
T2  - Journal of the Serbian Chemical Society
T1  - Comparison of non-destructive techniques and conventionally used spectrometric techniques for determination of elements in plant samples (coniferous leaves)
VL  - 87
IS  - 1
SP  - 69
EP  - 81
DO  - 10.2298/JSC210921101O
ER  - 

@article{
author = "Orlić, Jovana and Aničić-Urošević, Mira and Vergel, Konstantin and Zinicovscaia, Inga and Stojadinović, Sanja M. and Gržetić, Ivan and Ilijević, Konstantin",
year = "2022",
abstract = "Conventionally used spectrometric techniques of inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma optical emission spectrometry (ICP-MS) usually involve time-consuming sample preparation procedure of a sample dissolution which requires the usage of aggressive and toxic chemicals. The need for suitable and sustainable analytical methods for direct multi-elemental analysis of plant samples has been increased in recent years. Spectrometric techniques for direct sample analysis, instrumental neutron activation analysis (INAA) and X-ray fluorescence (XRF) have been applied in environmental studies and various fields of screening tests. Nevertheless, these techniques are not commonly used for plant sample analysis and their performances need to be evaluated. This research aimed to assess how reliable non-destructive techniques are in the determination of elements in plants compared to conventionally used spectrometric techniques. A total of 49 plant samples of four conifer species (Pinus nigra, Abies alba, Taxus baccata and Larix decidua) were measured using two conventionally applied (ICP-MS, ICP-OES) and two non-destructive techniques (wavelength dispersive XRF (WD-XRF), INAA). The comparison was performed by investigation of relative ratios of concentrations and by correlation analysis. Moreover, precision of the techniques was examined and compared. The quality control included analysis of NIST pine needles certified reference material (1575a) using all examined techniques. Our results suggest that additional analytical and quality control steps are necessary for reaching the highest accuracy of multi-elemental analysis.",
journal = "Journal of the Serbian Chemical Society",
title = "Comparison of non-destructive techniques and conventionally used spectrometric techniques for determination of elements in plant samples (coniferous leaves)",
volume = "87",
number = "1",
pages = "69-81",
doi = "10.2298/JSC210921101O"
}

Orlić, J., Aničić-Urošević, M., Vergel, K., Zinicovscaia, I., Stojadinović, S. M., Gržetić, I.,& Ilijević, K.. (2022). Comparison of non-destructive techniques and conventionally used spectrometric techniques for determination of elements in plant samples (coniferous leaves). in Journal of the Serbian Chemical Society, 87(1), 69-81.
https://doi.org/10.2298/JSC210921101O

Orlić J, Aničić-Urošević M, Vergel K, Zinicovscaia I, Stojadinović SM, Gržetić I, Ilijević K. Comparison of non-destructive techniques and conventionally used spectrometric techniques for determination of elements in plant samples (coniferous leaves). in Journal of the Serbian Chemical Society. 2022;87(1):69-81.
doi:10.2298/JSC210921101O .

Orlić, Jovana, Aničić-Urošević, Mira, Vergel, Konstantin, Zinicovscaia, Inga, Stojadinović, Sanja M., Gržetić, Ivan, Ilijević, Konstantin, "Comparison of non-destructive techniques and conventionally used spectrometric techniques for determination of elements in plant samples (coniferous leaves)" in Journal of the Serbian Chemical Society, 87, no. 1 (2022):69-81,
https://doi.org/10.2298/JSC210921101O . .

TY  - JOUR
AU  - Orlić, Jovana
AU  - Gržetić, Ivan
AU  - Goessler, Walter
AU  - Braeuer, Simone
AU  - Čáslavský, Josef
AU  - Pořízka, Jaromír
AU  - Ilijević, Konstantin
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0168583X21002238
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4614
AB  - This research explores the possibilities and limitations of WD-XRF, applied as a method for quantification of 20 elements in plant material, using spiked cellulose standards for calibration. Three different analytical methods were investigated: 1) standards created from pure spiked cellulose; 2) spiked cellulose mixed with 20% of binder and 3) spiked cellulose applied as a thin layer on an inert carrier. Sensitivity, linearity, limit of detection, limit of quantification, repeatability, intralaboratory reproducibility, and accuracy were determined and compared. The accuracy of the investigated methods was tested by analysis of standard reference materials and comparison with other routinely used analytical techniques (ICP-OES and ICP-MS). The comparison included real plant samples which were collected from the environment characterized by different pollution levels. The accuracy of the semiquantitative standardless method was also considered and compared with other investigated methods. Tested methods can be very precise, with good intralaboratory reproducibility over wide linear range.
PB  - Elsevier
T2  - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
T1  - Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples
VL  - 502
SP  - 106
EP  - 117
DO  - 10.1016/j.nimb.2021.06.012
ER  - 

@article{
author = "Orlić, Jovana and Gržetić, Ivan and Goessler, Walter and Braeuer, Simone and Čáslavský, Josef and Pořízka, Jaromír and Ilijević, Konstantin",
year = "2021",
abstract = "This research explores the possibilities and limitations of WD-XRF, applied as a method for quantification of 20 elements in plant material, using spiked cellulose standards for calibration. Three different analytical methods were investigated: 1) standards created from pure spiked cellulose; 2) spiked cellulose mixed with 20% of binder and 3) spiked cellulose applied as a thin layer on an inert carrier. Sensitivity, linearity, limit of detection, limit of quantification, repeatability, intralaboratory reproducibility, and accuracy were determined and compared. The accuracy of the investigated methods was tested by analysis of standard reference materials and comparison with other routinely used analytical techniques (ICP-OES and ICP-MS). The comparison included real plant samples which were collected from the environment characterized by different pollution levels. The accuracy of the semiquantitative standardless method was also considered and compared with other investigated methods. Tested methods can be very precise, with good intralaboratory reproducibility over wide linear range.",
publisher = "Elsevier",
journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",
title = "Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples",
volume = "502",
pages = "106-117",
doi = "10.1016/j.nimb.2021.06.012"
}

Orlić, J., Gržetić, I., Goessler, W., Braeuer, S., Čáslavský, J., Pořízka, J.,& Ilijević, K.. (2021). Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Elsevier., 502, 106-117.
https://doi.org/10.1016/j.nimb.2021.06.012

Orlić J, Gržetić I, Goessler W, Braeuer S, Čáslavský J, Pořízka J, Ilijević K. Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2021;502:106-117.
doi:10.1016/j.nimb.2021.06.012 .

Orlić, Jovana, Gržetić, Ivan, Goessler, Walter, Braeuer, Simone, Čáslavský, Josef, Pořízka, Jaromír, Ilijević, Konstantin, "Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples" in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 502 (2021):106-117,
https://doi.org/10.1016/j.nimb.2021.06.012 . .

TY  - DATA
AU  - Orlić, Jovana
AU  - Gržetić, Ivan
AU  - Goessler, Walter
AU  - Braeuer, Simone
AU  - Čáslavský, Josef
AU  - Pořízka, Jaromír
AU  - Ilijević, Konstantin
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0168583X21002238
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4615
AB  - This research explores the possibilities and limitations of WD-XRF, applied as a method for quantification of 20 elements in plant material, using spiked cellulose standards for calibration. Three different analytical methods were investigated: 1) standards created from pure spiked cellulose; 2) spiked cellulose mixed with 20% of binder and 3) spiked cellulose applied as a thin layer on an inert carrier. Sensitivity, linearity, limit of detection, limit of quantification, repeatability, intralaboratory reproducibility, and accuracy were determined and compared. The accuracy of the investigated methods was tested by analysis of standard reference materials and comparison with other routinely used analytical techniques (ICP-OES and ICP-MS). The comparison included real plant samples which were collected from the environment characterized by different pollution levels. The accuracy of the semiquantitative standardless method was also considered and compared with other investigated methods. Tested methods can be very precise, with good intralaboratory reproducibility over wide linear range.
PB  - Elsevier
T2  - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
T1  - Supplementary data for the article: Orlić, J.; Gržetić, I.; Goessler, W.; Braeuer, S.; Čáslavský, J.; Pořízka, J.; Ilijević, K. Artificial Cellulose Standards as Calibration Standards for Wavelength-Dispersive X-Ray Fluorescence Analysis of Elements in Plant Samples. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2021, 502, 106–117. https://doi.org/10.1016/j.nimb.2021.06.012.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4615
ER  - 

@misc{
author = "Orlić, Jovana and Gržetić, Ivan and Goessler, Walter and Braeuer, Simone and Čáslavský, Josef and Pořízka, Jaromír and Ilijević, Konstantin",
year = "2021",
abstract = "This research explores the possibilities and limitations of WD-XRF, applied as a method for quantification of 20 elements in plant material, using spiked cellulose standards for calibration. Three different analytical methods were investigated: 1) standards created from pure spiked cellulose; 2) spiked cellulose mixed with 20% of binder and 3) spiked cellulose applied as a thin layer on an inert carrier. Sensitivity, linearity, limit of detection, limit of quantification, repeatability, intralaboratory reproducibility, and accuracy were determined and compared. The accuracy of the investigated methods was tested by analysis of standard reference materials and comparison with other routinely used analytical techniques (ICP-OES and ICP-MS). The comparison included real plant samples which were collected from the environment characterized by different pollution levels. The accuracy of the semiquantitative standardless method was also considered and compared with other investigated methods. Tested methods can be very precise, with good intralaboratory reproducibility over wide linear range.",
publisher = "Elsevier",
journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",
title = "Supplementary data for the article: Orlić, J.; Gržetić, I.; Goessler, W.; Braeuer, S.; Čáslavský, J.; Pořízka, J.; Ilijević, K. Artificial Cellulose Standards as Calibration Standards for Wavelength-Dispersive X-Ray Fluorescence Analysis of Elements in Plant Samples. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2021, 502, 106–117. https://doi.org/10.1016/j.nimb.2021.06.012.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4615"
}

Orlić, J., Gržetić, I., Goessler, W., Braeuer, S., Čáslavský, J., Pořízka, J.,& Ilijević, K.. (2021). Supplementary data for the article: Orlić, J.; Gržetić, I.; Goessler, W.; Braeuer, S.; Čáslavský, J.; Pořízka, J.; Ilijević, K. Artificial Cellulose Standards as Calibration Standards for Wavelength-Dispersive X-Ray Fluorescence Analysis of Elements in Plant Samples. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2021, 502, 106–117. https://doi.org/10.1016/j.nimb.2021.06.012.. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Elsevier..
https://hdl.handle.net/21.15107/rcub_cherry_4615

Orlić J, Gržetić I, Goessler W, Braeuer S, Čáslavský J, Pořízka J, Ilijević K. Supplementary data for the article: Orlić, J.; Gržetić, I.; Goessler, W.; Braeuer, S.; Čáslavský, J.; Pořízka, J.; Ilijević, K. Artificial Cellulose Standards as Calibration Standards for Wavelength-Dispersive X-Ray Fluorescence Analysis of Elements in Plant Samples. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2021, 502, 106–117. https://doi.org/10.1016/j.nimb.2021.06.012.. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_4615 .

Orlić, Jovana, Gržetić, Ivan, Goessler, Walter, Braeuer, Simone, Čáslavský, Josef, Pořízka, Jaromír, Ilijević, Konstantin, "Supplementary data for the article: Orlić, J.; Gržetić, I.; Goessler, W.; Braeuer, S.; Čáslavský, J.; Pořízka, J.; Ilijević, K. Artificial Cellulose Standards as Calibration Standards for Wavelength-Dispersive X-Ray Fluorescence Analysis of Elements in Plant Samples. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2021, 502, 106–117. https://doi.org/10.1016/j.nimb.2021.06.012." in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (2021),
https://hdl.handle.net/21.15107/rcub_cherry_4615 .

TY  - JOUR
AU  - Ilijević, Konstantin
AU  - Vujanović, Dragana
AU  - Orčić, Snežana M.
AU  - Purać, Jelena
AU  - Kojić, Danijela
AU  - Zarić, Nenad M.
AU  - Gržetić, Ivan
AU  - Blagojević, Duško P.
AU  - Čelić, Tatjana V.
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4616
AB  - Honeybee colony losses have been a focus of research in the last years, due to the importance of managed honeybee colonies for economy and ecology. Different unfavorable conditions from the outside environment have a strong impact on the hive health. The majority of losses occur mainly during winter and the exact reason is not completely understood. Only a small number of studies are dealing with content of bioelements, their function and influence on honeybee physiology. The aim of the present study was to determine seasonal and spatial variations in content of bioelements and non-essential elements, in hemolymph and whole body of honeybees originating from three regions with different degrees of urbanization and industrialization. Concentrations of 16 elements were compared: macroelements (Ca, K, Mg, Na), microelements (Cu, Fe, Mn, Zn) and non-essential elements (Al, Ba, Cd, Co, Cr, Ni, Pb, Sr) in samples collected from 3 different environments: Golija (rural region), Belgrade (urban region) and Zajača (industrial region). Content of bioelements and non-essential elements in honeybees was under noticeable influence of the surrounding environment, season and degree of honeybee activity. Hemolymph was proven to be helpful in differentiating air pollution from other sources of honeybee exposure. The results of our study demonstrated that bees can be successfully used as biomonitors since we have observed statistically significant differences among observed locations, but unless compared locations are exposed to excessively different pollution pressures, it is essential that all bees should be collected at the same season.
PB  - Elsevier Inc.
T2  - Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
T1  - Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph
VL  - 239
SP  - 108852
DO  - 10.1016/j.cbpc.2020.108852
ER  - 

@article{
author = "Ilijević, Konstantin and Vujanović, Dragana and Orčić, Snežana M. and Purać, Jelena and Kojić, Danijela and Zarić, Nenad M. and Gržetić, Ivan and Blagojević, Duško P. and Čelić, Tatjana V.",
year = "2021",
abstract = "Honeybee colony losses have been a focus of research in the last years, due to the importance of managed honeybee colonies for economy and ecology. Different unfavorable conditions from the outside environment have a strong impact on the hive health. The majority of losses occur mainly during winter and the exact reason is not completely understood. Only a small number of studies are dealing with content of bioelements, their function and influence on honeybee physiology. The aim of the present study was to determine seasonal and spatial variations in content of bioelements and non-essential elements, in hemolymph and whole body of honeybees originating from three regions with different degrees of urbanization and industrialization. Concentrations of 16 elements were compared: macroelements (Ca, K, Mg, Na), microelements (Cu, Fe, Mn, Zn) and non-essential elements (Al, Ba, Cd, Co, Cr, Ni, Pb, Sr) in samples collected from 3 different environments: Golija (rural region), Belgrade (urban region) and Zajača (industrial region). Content of bioelements and non-essential elements in honeybees was under noticeable influence of the surrounding environment, season and degree of honeybee activity. Hemolymph was proven to be helpful in differentiating air pollution from other sources of honeybee exposure. The results of our study demonstrated that bees can be successfully used as biomonitors since we have observed statistically significant differences among observed locations, but unless compared locations are exposed to excessively different pollution pressures, it is essential that all bees should be collected at the same season.",
publisher = "Elsevier Inc.",
journal = "Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology",
title = "Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph",
volume = "239",
pages = "108852",
doi = "10.1016/j.cbpc.2020.108852"
}

Ilijević, K., Vujanović, D., Orčić, S. M., Purać, J., Kojić, D., Zarić, N. M., Gržetić, I., Blagojević, D. P.,& Čelić, T. V.. (2021). Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph. in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
Elsevier Inc.., 239, 108852.
https://doi.org/10.1016/j.cbpc.2020.108852

Ilijević K, Vujanović D, Orčić SM, Purać J, Kojić D, Zarić NM, Gržetić I, Blagojević DP, Čelić TV. Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph. in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology. 2021;239:108852.
doi:10.1016/j.cbpc.2020.108852 .

Ilijević, Konstantin, Vujanović, Dragana, Orčić, Snežana M., Purać, Jelena, Kojić, Danijela, Zarić, Nenad M., Gržetić, Ivan, Blagojević, Duško P., Čelić, Tatjana V., "Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph" in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, 239 (2021):108852,
https://doi.org/10.1016/j.cbpc.2020.108852 . .

TY  - DATA
AU  - Ilijević, Konstantin
AU  - Vujanović, Dragana
AU  - Orčić, Snežana M.
AU  - Purać, Jelena
AU  - Kojić, Danijela
AU  - Zarić, Nenad M.
AU  - Gržetić, Ivan
AU  - Blagojević, Duško P.
AU  - Čelić, Tatjana V.
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4617
PB  - Elsevier Inc.
T2  - Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
T1  - Supplementary data for the article: Ilijević, K.; Vujanović, D.; Orčić, S.; Purać, J.; Kojić, D.; Zarić, N.; Gržetić, I.; Blagojević, D. P.; Čelić, T. V. Anthropogenic Influence on Seasonal and Spatial Variation in Bioelements and Non-Essential Elements in Honeybees and Their Hemolymph. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2021, 239, 108852. https://doi.org/10.1016/j.cbpc.2020.108852.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4617
ER  - 

@misc{
author = "Ilijević, Konstantin and Vujanović, Dragana and Orčić, Snežana M. and Purać, Jelena and Kojić, Danijela and Zarić, Nenad M. and Gržetić, Ivan and Blagojević, Duško P. and Čelić, Tatjana V.",
year = "2021",
publisher = "Elsevier Inc.",
journal = "Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology",
title = "Supplementary data for the article: Ilijević, K.; Vujanović, D.; Orčić, S.; Purać, J.; Kojić, D.; Zarić, N.; Gržetić, I.; Blagojević, D. P.; Čelić, T. V. Anthropogenic Influence on Seasonal and Spatial Variation in Bioelements and Non-Essential Elements in Honeybees and Their Hemolymph. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2021, 239, 108852. https://doi.org/10.1016/j.cbpc.2020.108852.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4617"
}

Ilijević, K., Vujanović, D., Orčić, S. M., Purać, J., Kojić, D., Zarić, N. M., Gržetić, I., Blagojević, D. P.,& Čelić, T. V.. (2021). Supplementary data for the article: Ilijević, K.; Vujanović, D.; Orčić, S.; Purać, J.; Kojić, D.; Zarić, N.; Gržetić, I.; Blagojević, D. P.; Čelić, T. V. Anthropogenic Influence on Seasonal and Spatial Variation in Bioelements and Non-Essential Elements in Honeybees and Their Hemolymph. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2021, 239, 108852. https://doi.org/10.1016/j.cbpc.2020.108852.. in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
Elsevier Inc...
https://hdl.handle.net/21.15107/rcub_cherry_4617

Ilijević K, Vujanović D, Orčić SM, Purać J, Kojić D, Zarić NM, Gržetić I, Blagojević DP, Čelić TV. Supplementary data for the article: Ilijević, K.; Vujanović, D.; Orčić, S.; Purać, J.; Kojić, D.; Zarić, N.; Gržetić, I.; Blagojević, D. P.; Čelić, T. V. Anthropogenic Influence on Seasonal and Spatial Variation in Bioelements and Non-Essential Elements in Honeybees and Their Hemolymph. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2021, 239, 108852. https://doi.org/10.1016/j.cbpc.2020.108852.. in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_4617 .

Ilijević, Konstantin, Vujanović, Dragana, Orčić, Snežana M., Purać, Jelena, Kojić, Danijela, Zarić, Nenad M., Gržetić, Ivan, Blagojević, Duško P., Čelić, Tatjana V., "Supplementary data for the article: Ilijević, K.; Vujanović, D.; Orčić, S.; Purać, J.; Kojić, D.; Zarić, N.; Gržetić, I.; Blagojević, D. P.; Čelić, T. V. Anthropogenic Influence on Seasonal and Spatial Variation in Bioelements and Non-Essential Elements in Honeybees and Their Hemolymph. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2021, 239, 108852. https://doi.org/10.1016/j.cbpc.2020.108852." in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology (2021),
https://hdl.handle.net/21.15107/rcub_cherry_4617 .

TY  - JOUR
AU  - Orlić, Jovana
AU  - Gržetić, Ivan
AU  - Ilijević, Konstantin
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0584854721002159
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4618
AB  - XRF (X-ray fluorescence analysis) has been applied as the method for analysis of plant samples, but not in its full potential. This method would be highly suitable for monitoring programs and screening studies. A simple sample preparation procedure makes this technique time and cost-effective, although the absence of adequate calibration standards for some analyzed matrices can be a significant limiting factor. Nevertheless, this obstacle can be overcome by the development of the so-called “standardless method” approach. It is important to explore the possibilities and limitations of such method applied to an analysis of plant materials. The accuracy of XRF analysis is highly dependent on the physical characteristics of the sample, which can be significantly affected by the sample preparation procedure. Variations of 3 crucial sample preparation parameters: the mass of the samples (from 1 to 5 g), binder ratio (from 0 to 25% of wax), and pressing pressure (from 10 to 25 t) were tested on needles obtained from two widespread conifer species: Pinus nigra and Abies alba. For most elements, the correlation between the concentration and the change of the binder ratio was statistically significant, while there was no statistically significant correlation between the concentration and the change of the pellet mass and applied pressure. For both types of needles, an estimated systematic error was always higher than a random error. The difference between two types of errors has been higher among samples with different wax content than in samples with different pellet mass, while the variation of applied pressure did not introduce any significant systematic error. On average the change of wax content inflated the value of systematic error by 18 and 13% for the pine and fir needle samples (respectively), while the change of the sample mass has introduced systematic error in lesser extent, on average it was 11% for pine needles and 10% for fir needle samples. The change of pelletizing pressure affected the results by only 3.9% for both conifer needles.
PB  - Elsevier
T2  - Spectrochimica Acta Part B: Atomic Spectroscopy
T1  - Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples
VL  - 184
SP  - 106258
DO  - 10.1016/j.sab.2021.106258
ER  - 

@article{
author = "Orlić, Jovana and Gržetić, Ivan and Ilijević, Konstantin",
year = "2021",
abstract = "XRF (X-ray fluorescence analysis) has been applied as the method for analysis of plant samples, but not in its full potential. This method would be highly suitable for monitoring programs and screening studies. A simple sample preparation procedure makes this technique time and cost-effective, although the absence of adequate calibration standards for some analyzed matrices can be a significant limiting factor. Nevertheless, this obstacle can be overcome by the development of the so-called “standardless method” approach. It is important to explore the possibilities and limitations of such method applied to an analysis of plant materials. The accuracy of XRF analysis is highly dependent on the physical characteristics of the sample, which can be significantly affected by the sample preparation procedure. Variations of 3 crucial sample preparation parameters: the mass of the samples (from 1 to 5 g), binder ratio (from 0 to 25% of wax), and pressing pressure (from 10 to 25 t) were tested on needles obtained from two widespread conifer species: Pinus nigra and Abies alba. For most elements, the correlation between the concentration and the change of the binder ratio was statistically significant, while there was no statistically significant correlation between the concentration and the change of the pellet mass and applied pressure. For both types of needles, an estimated systematic error was always higher than a random error. The difference between two types of errors has been higher among samples with different wax content than in samples with different pellet mass, while the variation of applied pressure did not introduce any significant systematic error. On average the change of wax content inflated the value of systematic error by 18 and 13% for the pine and fir needle samples (respectively), while the change of the sample mass has introduced systematic error in lesser extent, on average it was 11% for pine needles and 10% for fir needle samples. The change of pelletizing pressure affected the results by only 3.9% for both conifer needles.",
publisher = "Elsevier",
journal = "Spectrochimica Acta Part B: Atomic Spectroscopy",
title = "Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples",
volume = "184",
pages = "106258",
doi = "10.1016/j.sab.2021.106258"
}

Orlić, J., Gržetić, I.,& Ilijević, K.. (2021). Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples. in Spectrochimica Acta Part B: Atomic Spectroscopy
Elsevier., 184, 106258.
https://doi.org/10.1016/j.sab.2021.106258

Orlić J, Gržetić I, Ilijević K. Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples. in Spectrochimica Acta Part B: Atomic Spectroscopy. 2021;184:106258.
doi:10.1016/j.sab.2021.106258 .

Orlić, Jovana, Gržetić, Ivan, Ilijević, Konstantin, "Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples" in Spectrochimica Acta Part B: Atomic Spectroscopy, 184 (2021):106258,
https://doi.org/10.1016/j.sab.2021.106258 . .

TY  - DATA
AU  - Orlić, Jovana
AU  - Gržetić, Ivan
AU  - Ilijević, Konstantin
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0584854721002159
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4619
PB  - Elsevier
T2  - Spectrochimica Acta Part B: Atomic Spectroscopy
T1  - Supplementary data for the article: Orlić, J.; Gržetić, I.; Ilijević, K. Effect of Sample Preparation Procedure on Standardless Wavelength Dispersive X-Ray Fluorescence Analysis of Plant Samples. Spectrochimica Acta Part B: Atomic Spectroscopy 2021, 184, 106258. https://doi.org/10.1016/j.sab.2021.106258.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4619
ER  - 

@misc{
author = "Orlić, Jovana and Gržetić, Ivan and Ilijević, Konstantin",
year = "2021",
publisher = "Elsevier",
journal = "Spectrochimica Acta Part B: Atomic Spectroscopy",
title = "Supplementary data for the article: Orlić, J.; Gržetić, I.; Ilijević, K. Effect of Sample Preparation Procedure on Standardless Wavelength Dispersive X-Ray Fluorescence Analysis of Plant Samples. Spectrochimica Acta Part B: Atomic Spectroscopy 2021, 184, 106258. https://doi.org/10.1016/j.sab.2021.106258.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4619"
}

Orlić, J., Gržetić, I.,& Ilijević, K.. (2021). Supplementary data for the article: Orlić, J.; Gržetić, I.; Ilijević, K. Effect of Sample Preparation Procedure on Standardless Wavelength Dispersive X-Ray Fluorescence Analysis of Plant Samples. Spectrochimica Acta Part B: Atomic Spectroscopy 2021, 184, 106258. https://doi.org/10.1016/j.sab.2021.106258.. in Spectrochimica Acta Part B: Atomic Spectroscopy
Elsevier..
https://hdl.handle.net/21.15107/rcub_cherry_4619

Orlić J, Gržetić I, Ilijević K. Supplementary data for the article: Orlić, J.; Gržetić, I.; Ilijević, K. Effect of Sample Preparation Procedure on Standardless Wavelength Dispersive X-Ray Fluorescence Analysis of Plant Samples. Spectrochimica Acta Part B: Atomic Spectroscopy 2021, 184, 106258. https://doi.org/10.1016/j.sab.2021.106258.. in Spectrochimica Acta Part B: Atomic Spectroscopy. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_4619 .

Orlić, Jovana, Gržetić, Ivan, Ilijević, Konstantin, "Supplementary data for the article: Orlić, J.; Gržetić, I.; Ilijević, K. Effect of Sample Preparation Procedure on Standardless Wavelength Dispersive X-Ray Fluorescence Analysis of Plant Samples. Spectrochimica Acta Part B: Atomic Spectroscopy 2021, 184, 106258. https://doi.org/10.1016/j.sab.2021.106258." in Spectrochimica Acta Part B: Atomic Spectroscopy (2021),
https://hdl.handle.net/21.15107/rcub_cherry_4619 .

TY  - JOUR
AU  - Ilijević, Konstantin
AU  - Vujanović, Dragana
AU  - Orčić, Snežana M.
AU  - Purać, Jelena
AU  - Kojić, Danijela
AU  - Zarić, Nenad M.
AU  - Gržetić, Ivan
AU  - Blagojević, Duško P.
AU  - Čelić, Tatjana V.
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5759
AB  - Honeybee colony losses have been a focus of research in the last years, due to the importance of managed honeybee colonies for economy and ecology. Different unfavorable conditions from the outside environment have a strong impact on the hive health. The majority of losses occur mainly during winter and the exact reason is not completely understood. Only a small number of studies are dealing with content of bioelements, their function and influence on honeybee physiology. The aim of the present study was to determine seasonal and spatial variations in content of bioelements and non-essential elements, in hemolymph and whole body of honeybees originating from three regions with different degrees of urbanization and industrialization. Concentrations of 16 elements were compared: macroelements (Ca, K, Mg, Na), microelements (Cu, Fe, Mn, Zn) and non-essential elements (Al, Ba, Cd, Co, Cr, Ni, Pb, Sr) in samples collected from 3 different environments: Golija (rural region), Belgrade (urban region) and Zajača (industrial region). Content of bioelements and non-essential elements in honeybees was under noticeable influence of the surrounding environment, season and degree of honeybee activity. Hemolymph was proven to be helpful in differentiating air pollution from other sources of honeybee exposure. The results of our study demonstrated that bees can be successfully used as biomonitors since we have observed statistically significant differences among observed locations, but unless compared locations are exposed to excessively different pollution pressures, it is essential that all bees should be collected at the same season.
PB  - Elsevier Inc.
T2  - Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
T1  - Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph
VL  - 239
SP  - 108852
DO  - 10.1016/j.cbpc.2020.108852
ER  - 

@article{
author = "Ilijević, Konstantin and Vujanović, Dragana and Orčić, Snežana M. and Purać, Jelena and Kojić, Danijela and Zarić, Nenad M. and Gržetić, Ivan and Blagojević, Duško P. and Čelić, Tatjana V.",
year = "2021",
abstract = "Honeybee colony losses have been a focus of research in the last years, due to the importance of managed honeybee colonies for economy and ecology. Different unfavorable conditions from the outside environment have a strong impact on the hive health. The majority of losses occur mainly during winter and the exact reason is not completely understood. Only a small number of studies are dealing with content of bioelements, their function and influence on honeybee physiology. The aim of the present study was to determine seasonal and spatial variations in content of bioelements and non-essential elements, in hemolymph and whole body of honeybees originating from three regions with different degrees of urbanization and industrialization. Concentrations of 16 elements were compared: macroelements (Ca, K, Mg, Na), microelements (Cu, Fe, Mn, Zn) and non-essential elements (Al, Ba, Cd, Co, Cr, Ni, Pb, Sr) in samples collected from 3 different environments: Golija (rural region), Belgrade (urban region) and Zajača (industrial region). Content of bioelements and non-essential elements in honeybees was under noticeable influence of the surrounding environment, season and degree of honeybee activity. Hemolymph was proven to be helpful in differentiating air pollution from other sources of honeybee exposure. The results of our study demonstrated that bees can be successfully used as biomonitors since we have observed statistically significant differences among observed locations, but unless compared locations are exposed to excessively different pollution pressures, it is essential that all bees should be collected at the same season.",
publisher = "Elsevier Inc.",
journal = "Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology",
title = "Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph",
volume = "239",
pages = "108852",
doi = "10.1016/j.cbpc.2020.108852"
}

Ilijević, K., Vujanović, D., Orčić, S. M., Purać, J., Kojić, D., Zarić, N. M., Gržetić, I., Blagojević, D. P.,& Čelić, T. V.. (2021). Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph. in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
Elsevier Inc.., 239, 108852.
https://doi.org/10.1016/j.cbpc.2020.108852

Ilijević K, Vujanović D, Orčić SM, Purać J, Kojić D, Zarić NM, Gržetić I, Blagojević DP, Čelić TV. Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph. in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology. 2021;239:108852.
doi:10.1016/j.cbpc.2020.108852 .

Ilijević, Konstantin, Vujanović, Dragana, Orčić, Snežana M., Purać, Jelena, Kojić, Danijela, Zarić, Nenad M., Gržetić, Ivan, Blagojević, Duško P., Čelić, Tatjana V., "Anthropogenic influence on seasonal and spatial variation in bioelements and non-essential elements in honeybees and their hemolymph" in Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, 239 (2021):108852,
https://doi.org/10.1016/j.cbpc.2020.108852 . .

TY  - JOUR
AU  - Orlić, Jovana
AU  - Gržetić, Ivan
AU  - Goessler, Walter
AU  - Braeuer, Simone
AU  - Čáslavský, Josef
AU  - Pořízka, Jaromír
AU  - Ilijević, Konstantin
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0168583X21002238
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5760
AB  - This research explores the possibilities and limitations of WD-XRF, applied as a method for quantification of 20 elements in plant material, using spiked cellulose standards for calibration. Three different analytical methods were investigated: 1) standards created from pure spiked cellulose; 2) spiked cellulose mixed with 20% of binder and 3) spiked cellulose applied as a thin layer on an inert carrier. Sensitivity, linearity, limit of detection, limit of quantification, repeatability, intralaboratory reproducibility, and accuracy were determined and compared. The accuracy of the investigated methods was tested by analysis of standard reference materials and comparison with other routinely used analytical techniques (ICP-OES and ICP-MS). The comparison included real plant samples which were collected from the environment characterized by different pollution levels. The accuracy of the semiquantitative standardless method was also considered and compared with other investigated methods. Tested methods can be very precise, with good intralaboratory reproducibility over wide linear range.
PB  - Elsevier
T2  - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
T1  - Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples
VL  - 502
SP  - 106
EP  - 117
DO  - 10.1016/j.nimb.2021.06.012
ER  - 

@article{
author = "Orlić, Jovana and Gržetić, Ivan and Goessler, Walter and Braeuer, Simone and Čáslavský, Josef and Pořízka, Jaromír and Ilijević, Konstantin",
year = "2021",
abstract = "This research explores the possibilities and limitations of WD-XRF, applied as a method for quantification of 20 elements in plant material, using spiked cellulose standards for calibration. Three different analytical methods were investigated: 1) standards created from pure spiked cellulose; 2) spiked cellulose mixed with 20% of binder and 3) spiked cellulose applied as a thin layer on an inert carrier. Sensitivity, linearity, limit of detection, limit of quantification, repeatability, intralaboratory reproducibility, and accuracy were determined and compared. The accuracy of the investigated methods was tested by analysis of standard reference materials and comparison with other routinely used analytical techniques (ICP-OES and ICP-MS). The comparison included real plant samples which were collected from the environment characterized by different pollution levels. The accuracy of the semiquantitative standardless method was also considered and compared with other investigated methods. Tested methods can be very precise, with good intralaboratory reproducibility over wide linear range.",
publisher = "Elsevier",
journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",
title = "Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples",
volume = "502",
pages = "106-117",
doi = "10.1016/j.nimb.2021.06.012"
}

Orlić, J., Gržetić, I., Goessler, W., Braeuer, S., Čáslavský, J., Pořízka, J.,& Ilijević, K.. (2021). Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Elsevier., 502, 106-117.
https://doi.org/10.1016/j.nimb.2021.06.012

Orlić J, Gržetić I, Goessler W, Braeuer S, Čáslavský J, Pořízka J, Ilijević K. Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2021;502:106-117.
doi:10.1016/j.nimb.2021.06.012 .

Orlić, Jovana, Gržetić, Ivan, Goessler, Walter, Braeuer, Simone, Čáslavský, Josef, Pořízka, Jaromír, Ilijević, Konstantin, "Artificial cellulose standards as calibration standards for wavelength-dispersive X-ray fluorescence analysis of elements in plant samples" in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 502 (2021):106-117,
https://doi.org/10.1016/j.nimb.2021.06.012 . .

TY  - JOUR
AU  - Orlić, Jovana
AU  - Gržetić, Ivan
AU  - Ilijević, Konstantin
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0584854721002159
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5761
AB  - XRF (X-ray fluorescence analysis) has been applied as the method for analysis of plant samples, but not in its full potential. This method would be highly suitable for monitoring programs and screening studies. A simple sample preparation procedure makes this technique time and cost-effective, although the absence of adequate calibration standards for some analyzed matrices can be a significant limiting factor. Nevertheless, this obstacle can be overcome by the development of the so-called “standardless method” approach. It is important to explore the possibilities and limitations of such method applied to an analysis of plant materials. The accuracy of XRF analysis is highly dependent on the physical characteristics of the sample, which can be significantly affected by the sample preparation procedure. Variations of 3 crucial sample preparation parameters: the mass of the samples (from 1 to 5 g), binder ratio (from 0 to 25% of wax), and pressing pressure (from 10 to 25 t) were tested on needles obtained from two widespread conifer species: Pinus nigra and Abies alba. For most elements, the correlation between the concentration and the change of the binder ratio was statistically significant, while there was no statistically significant correlation between the concentration and the change of the pellet mass and applied pressure. For both types of needles, an estimated systematic error was always higher than a random error. The difference between two types of errors has been higher among samples with different wax content than in samples with different pellet mass, while the variation of applied pressure did not introduce any significant systematic error. On average the change of wax content inflated the value of systematic error by 18 and 13% for the pine and fir needle samples (respectively), while the change of the sample mass has introduced systematic error in lesser extent, on average it was 11% for pine needles and 10% for fir needle samples. The change of pelletizing pressure affected the results by only 3.9% for both conifer needles.
PB  - Elsevier
T2  - Spectrochimica Acta Part B: Atomic Spectroscopy
T1  - Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples
VL  - 184
SP  - 106258
DO  - 10.1016/j.sab.2021.106258
ER  - 

@article{
author = "Orlić, Jovana and Gržetić, Ivan and Ilijević, Konstantin",
year = "2021",
abstract = "XRF (X-ray fluorescence analysis) has been applied as the method for analysis of plant samples, but not in its full potential. This method would be highly suitable for monitoring programs and screening studies. A simple sample preparation procedure makes this technique time and cost-effective, although the absence of adequate calibration standards for some analyzed matrices can be a significant limiting factor. Nevertheless, this obstacle can be overcome by the development of the so-called “standardless method” approach. It is important to explore the possibilities and limitations of such method applied to an analysis of plant materials. The accuracy of XRF analysis is highly dependent on the physical characteristics of the sample, which can be significantly affected by the sample preparation procedure. Variations of 3 crucial sample preparation parameters: the mass of the samples (from 1 to 5 g), binder ratio (from 0 to 25% of wax), and pressing pressure (from 10 to 25 t) were tested on needles obtained from two widespread conifer species: Pinus nigra and Abies alba. For most elements, the correlation between the concentration and the change of the binder ratio was statistically significant, while there was no statistically significant correlation between the concentration and the change of the pellet mass and applied pressure. For both types of needles, an estimated systematic error was always higher than a random error. The difference between two types of errors has been higher among samples with different wax content than in samples with different pellet mass, while the variation of applied pressure did not introduce any significant systematic error. On average the change of wax content inflated the value of systematic error by 18 and 13% for the pine and fir needle samples (respectively), while the change of the sample mass has introduced systematic error in lesser extent, on average it was 11% for pine needles and 10% for fir needle samples. The change of pelletizing pressure affected the results by only 3.9% for both conifer needles.",
publisher = "Elsevier",
journal = "Spectrochimica Acta Part B: Atomic Spectroscopy",
title = "Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples",
volume = "184",
pages = "106258",
doi = "10.1016/j.sab.2021.106258"
}

Orlić, J., Gržetić, I.,& Ilijević, K.. (2021). Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples. in Spectrochimica Acta Part B: Atomic Spectroscopy
Elsevier., 184, 106258.
https://doi.org/10.1016/j.sab.2021.106258

Orlić J, Gržetić I, Ilijević K. Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples. in Spectrochimica Acta Part B: Atomic Spectroscopy. 2021;184:106258.
doi:10.1016/j.sab.2021.106258 .

Orlić, Jovana, Gržetić, Ivan, Ilijević, Konstantin, "Effect of sample preparation procedure on standardless wavelength dispersive X-ray fluorescence analysis of plant samples" in Spectrochimica Acta Part B: Atomic Spectroscopy, 184 (2021):106258,
https://doi.org/10.1016/j.sab.2021.106258 . .

TY  - JOUR
AU  - Ilić, Ilija
AU  - Milutinović-Nikolić, Aleksandra D.
AU  - Mojović, Zorica D.
AU  - Vuković, Zoran
AU  - Vulić, Predrag J.
AU  - Gržetić, Ivan
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4045
AB  - The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts
VL  - 193
SP  - 105668
DO  - 10.1016/j.clay.2020.105668
ER  - 

@article{
author = "Ilić, Ilija and Milutinović-Nikolić, Aleksandra D. and Mojović, Zorica D. and Vuković, Zoran and Vulić, Predrag J. and Gržetić, Ivan and Banković, Predrag and Jović-Jovičić, Nataša",
year = "2020",
abstract = "The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts",
volume = "193",
pages = "105668",
doi = "10.1016/j.clay.2020.105668"
}

Ilić, I., Milutinović-Nikolić, A. D., Mojović, Z. D., Vuković, Z., Vulić, P. J., Gržetić, I., Banković, P.,& Jović-Jovičić, N.. (2020). Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts. in Applied Clay Science
Elsevier., 193, 105668.
https://doi.org/10.1016/j.clay.2020.105668

Ilić I, Milutinović-Nikolić AD, Mojović ZD, Vuković Z, Vulić PJ, Gržetić I, Banković P, Jović-Jovičić N. Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts. in Applied Clay Science. 2020;193:105668.
doi:10.1016/j.clay.2020.105668 .

Ilić, Ilija, Milutinović-Nikolić, Aleksandra D., Mojović, Zorica D., Vuković, Zoran, Vulić, Predrag J., Gržetić, Ivan, Banković, Predrag, Jović-Jovičić, Nataša, "Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts" in Applied Clay Science, 193 (2020):105668,
https://doi.org/10.1016/j.clay.2020.105668 . .

TY  - DATA
AU  - Ilić, Ilija
AU  - Milutinović-Nikolić, Aleksandra D.
AU  - Mojović, Zorica D.
AU  - Vuković, Zoran
AU  - Vulić, Predrag J.
AU  - Gržetić, Ivan
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4046
PB  - Elsevier
T2  - Applied Clay Science
T1  - Supplementary data for the article: Ilić, I.; Milutinović-Nikolić, A.; Mojović, Z.; Vuković, Z.; Vulić, P.; Gržetić, I.; Banković, P.; Jović-Jovičić, N. Oxidative Degradation of Aromatic N-Compounds Using Cobalt Containing Montmorillonite-Based Catalysts. Applied Clay Science 2020, 193, 105668. https://doi.org/10.1016/j.clay.2020.105668
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4046
ER  - 

@misc{
author = "Ilić, Ilija and Milutinović-Nikolić, Aleksandra D. and Mojović, Zorica D. and Vuković, Zoran and Vulić, Predrag J. and Gržetić, Ivan and Banković, Predrag and Jović-Jovičić, Nataša",
year = "2020",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Supplementary data for the article: Ilić, I.; Milutinović-Nikolić, A.; Mojović, Z.; Vuković, Z.; Vulić, P.; Gržetić, I.; Banković, P.; Jović-Jovičić, N. Oxidative Degradation of Aromatic N-Compounds Using Cobalt Containing Montmorillonite-Based Catalysts. Applied Clay Science 2020, 193, 105668. https://doi.org/10.1016/j.clay.2020.105668",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4046"
}

Ilić, I., Milutinović-Nikolić, A. D., Mojović, Z. D., Vuković, Z., Vulić, P. J., Gržetić, I., Banković, P.,& Jović-Jovičić, N.. (2020). Supplementary data for the article: Ilić, I.; Milutinović-Nikolić, A.; Mojović, Z.; Vuković, Z.; Vulić, P.; Gržetić, I.; Banković, P.; Jović-Jovičić, N. Oxidative Degradation of Aromatic N-Compounds Using Cobalt Containing Montmorillonite-Based Catalysts. Applied Clay Science 2020, 193, 105668. https://doi.org/10.1016/j.clay.2020.105668. in Applied Clay Science
Elsevier..
https://hdl.handle.net/21.15107/rcub_cherry_4046

Ilić I, Milutinović-Nikolić AD, Mojović ZD, Vuković Z, Vulić PJ, Gržetić I, Banković P, Jović-Jovičić N. Supplementary data for the article: Ilić, I.; Milutinović-Nikolić, A.; Mojović, Z.; Vuković, Z.; Vulić, P.; Gržetić, I.; Banković, P.; Jović-Jovičić, N. Oxidative Degradation of Aromatic N-Compounds Using Cobalt Containing Montmorillonite-Based Catalysts. Applied Clay Science 2020, 193, 105668. https://doi.org/10.1016/j.clay.2020.105668. in Applied Clay Science. 2020;.
https://hdl.handle.net/21.15107/rcub_cherry_4046 .

Ilić, Ilija, Milutinović-Nikolić, Aleksandra D., Mojović, Zorica D., Vuković, Zoran, Vulić, Predrag J., Gržetić, Ivan, Banković, Predrag, Jović-Jovičić, Nataša, "Supplementary data for the article: Ilić, I.; Milutinović-Nikolić, A.; Mojović, Z.; Vuković, Z.; Vulić, P.; Gržetić, I.; Banković, P.; Jović-Jovičić, N. Oxidative Degradation of Aromatic N-Compounds Using Cobalt Containing Montmorillonite-Based Catalysts. Applied Clay Science 2020, 193, 105668. https://doi.org/10.1016/j.clay.2020.105668" in Applied Clay Science (2020),
https://hdl.handle.net/21.15107/rcub_cherry_4046 .

TY  - JOUR
AU  - Životić, Dragana R.
AU  - Cvetković, Olga
AU  - Vulić, Predrag J.
AU  - Gržetić, Ivan
AU  - Simić, Vladimir
AU  - Ilijević, Konstantin
AU  - Dojčinović, Biljana P.
AU  - Erić, Suzana
AU  - Radić, Bogdan
AU  - Stojadinović, Sanja M.
AU  - Trifunović, Snežana S.
PY  - 2019
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2897
AB  - A geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). The most abundant minerals in all lignite samples from the three coal seams are clays (illite/smectite), silicates (quartz, plagioclase), sulphates (gypsum/anhydrite) and carbonate (calcite). The other iron-rich minerals are sulphides, oxides and hydroxides (pyrite, mag-netite, haematite, and limonite). In general, mineral matter in the matrix coal consists of illite/ smectite and quartz, while xylite-rich coals, apart from illite/smectite, have a higher content of sulphates and Fe-oxide/hydroxide minerals. The lignite from the Kovin deposit is enriched in As, Cd, Co, Cr, Cu, Ga, Li, Mn, Mo, Ni, Pb, V, Zn, Gd, Tb, Er and Lu in comparison with the Clarke values for brown coals. The statistical analysis of bulk compositional data shows inorganic affinity for the majority of the major and trace elements and possible association with pyrite, illite/ smectite and calcite.
PB  - Crossref
T2  - Geologia Croatica
T1  - Distribution of major and trace elements in the Kovin lignite (Serbia)
VL  - 72
IS  - 1
SP  - 51
EP  - 79
DO  - 10.4154/gc.2019.06
ER  - 

@article{
author = "Životić, Dragana R. and Cvetković, Olga and Vulić, Predrag J. and Gržetić, Ivan and Simić, Vladimir and Ilijević, Konstantin and Dojčinović, Biljana P. and Erić, Suzana and Radić, Bogdan and Stojadinović, Sanja M. and Trifunović, Snežana S.",
year = "2019, 2019",
abstract = "A geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). The most abundant minerals in all lignite samples from the three coal seams are clays (illite/smectite), silicates (quartz, plagioclase), sulphates (gypsum/anhydrite) and carbonate (calcite). The other iron-rich minerals are sulphides, oxides and hydroxides (pyrite, mag-netite, haematite, and limonite). In general, mineral matter in the matrix coal consists of illite/ smectite and quartz, while xylite-rich coals, apart from illite/smectite, have a higher content of sulphates and Fe-oxide/hydroxide minerals. The lignite from the Kovin deposit is enriched in As, Cd, Co, Cr, Cu, Ga, Li, Mn, Mo, Ni, Pb, V, Zn, Gd, Tb, Er and Lu in comparison with the Clarke values for brown coals. The statistical analysis of bulk compositional data shows inorganic affinity for the majority of the major and trace elements and possible association with pyrite, illite/ smectite and calcite.",
publisher = "Crossref",
journal = "Geologia Croatica",
title = "Distribution of major and trace elements in the Kovin lignite (Serbia)",
volume = "72",
number = "1",
pages = "51-79",
doi = "10.4154/gc.2019.06"
}

Životić, D. R., Cvetković, O., Vulić, P. J., Gržetić, I., Simić, V., Ilijević, K., Dojčinović, B. P., Erić, S., Radić, B., Stojadinović, S. M.,& Trifunović, S. S.. (2019). Distribution of major and trace elements in the Kovin lignite (Serbia). in Geologia Croatica
Crossref., 72(1), 51-79.
https://doi.org/10.4154/gc.2019.06

Životić DR, Cvetković O, Vulić PJ, Gržetić I, Simić V, Ilijević K, Dojčinović BP, Erić S, Radić B, Stojadinović SM, Trifunović SS. Distribution of major and trace elements in the Kovin lignite (Serbia). in Geologia Croatica. 2019;72(1):51-79.
doi:10.4154/gc.2019.06 .

Životić, Dragana R., Cvetković, Olga, Vulić, Predrag J., Gržetić, Ivan, Simić, Vladimir, Ilijević, Konstantin, Dojčinović, Biljana P., Erić, Suzana, Radić, Bogdan, Stojadinović, Sanja M., Trifunović, Snežana S., "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, 72, no. 1 (2019):51-79,
https://doi.org/10.4154/gc.2019.06 . .

TY  - CONF
AU  - Orlić, Jovana
AU  - Ilijević, Konstantin
AU  - Savić, Slađana D.
AU  - Zarić, Nenad M.
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://emec19.sciencesconf.org/data/pages/EMEC_19_Book_of_abstract.pdf
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5919
UR  - http://www.europeanace.com/about/meetings
UR  - https://emec19.sciencesconf.org
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5920
AB  - Plants are known as good biomonitors in contaminated areas due to their tendency to accumulate toxic metals. Methods based on direct solid sample analysis are more favourable because they avoid utilization of aggressive and toxic agents, which is in line with green chemistry principles [1]. Besides nondestructiveness, X-ray fluorescence spectroscopy (XRF) is suitable for plant analysis because it offers wide linearity range (from ppm level to 100 %) and possibility of analysis of almost whole PSE (from Be to Am) [2]. Plant sample preparation procedure for WDXRF analysis includes grinding and drying at 60 C. After obtaining a homogeneous mixture, the plant sample is mixed with a certain amount of binder (Hoechst wax C micropowder) and pressed in a hydraulic press (Retsch PP 25) in order to obtain stable pellet (32 mm diameter). The plants are mostly made of light elements (O, N and C) which are transparent for X-rays. During analysis of elements with a higher atomic number, Xrays penetrate quite deep into the sample. It is important to establish the minimum thickness of the pellet that will provide reliable results during determination of the heavier elements in the plant matrix. Samples are measured under conditions of high vacuum and slightly elevated temperature, and for that reason herbal matrix is prone to physical changes after analysis. It is important to determine ideal ratio between mass of the sample and the binder that will provide a stable pellet without affecting determination of elements which are present in low concentrations. During this study, two types of plant samples were analysed: fir and pine needles. Samples were collected in 2017 during autumn. The influence of pellet mass (thickness) on elements concentration was examined by measuring pellets prepared from 1, 2, 3, 4 or 5 g of plans material. By preparing pellets with: 0, 5, 10, 15, 20 and 25 % of wax, the influence of binder ratio was examined. Analysis was performed on ARL™ PERFORM’X Sequential Wavelength Dispersive XRay Fluorescence Spectrometer (Thermo Fisher Scientific, Switzerland) combined with ARL software program UniQuant [3]. In both types of plant samples the following elements were determined: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Zn, Sr and Zr. Both fir and pine needles show similar trends. As quantity of binder increases, the concentration of Ca and K increases, because wax as binder can contain small quantities of those elements. Repeatability of elements that were found in higher concentrations (Mg, Al, Si, P, S, Cl, K and Ca) is high, while repeatability for low concentration elements (Ti, Fe, Ni, Zn, Sr) decreases as percent of binder increases. Reason for that phenomenon is that dilution with wax is affecting elements in low concentration more than high concentration elements. For light elements results show small impact of pellet mass on the measurements because observed X-rays have low penetration depth. Elements with higher Z number are usually present in smaller concentrations in plants and such measurements are less precise, especially when the smaller pellet mass is analyzed. We can say that UniQuant, as standardless method of analysis, which uses the advanced Fundamental parameters Algorithms for data processing, is well adjusted and able to deal with analysis of different sample masses. When physical properties of pellets are investigated, addition of 20% of wax provides the most stabile pellets with flattest surface. For adequate pellet stability, recommend mass of pellets should be 4 g, but it has been shown that 3 g is acceptable in the case of a small sample quantity. In case when we have less than 3 g, it is recommended to carefully place sample as thin layer on the top of 3 g of boric acid inert carrier.
PB  - Institute of Chemistry of Clermont-Ferrand (ICCF) from the Clermont Auvergne University
PB  - CNRS
PB  - Sigma-Clermont
C3  - 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December
T1  - Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF)
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5920
ER  - 

@conference{
author = "Orlić, Jovana and Ilijević, Konstantin and Savić, Slađana D. and Zarić, Nenad M. and Gržetić, Ivan",
year = "2018",
abstract = "Plants are known as good biomonitors in contaminated areas due to their tendency to accumulate toxic metals. Methods based on direct solid sample analysis are more favourable because they avoid utilization of aggressive and toxic agents, which is in line with green chemistry principles [1]. Besides nondestructiveness, X-ray fluorescence spectroscopy (XRF) is suitable for plant analysis because it offers wide linearity range (from ppm level to 100 %) and possibility of analysis of almost whole PSE (from Be to Am) [2]. Plant sample preparation procedure for WDXRF analysis includes grinding and drying at 60 C. After obtaining a homogeneous mixture, the plant sample is mixed with a certain amount of binder (Hoechst wax C micropowder) and pressed in a hydraulic press (Retsch PP 25) in order to obtain stable pellet (32 mm diameter). The plants are mostly made of light elements (O, N and C) which are transparent for X-rays. During analysis of elements with a higher atomic number, Xrays penetrate quite deep into the sample. It is important to establish the minimum thickness of the pellet that will provide reliable results during determination of the heavier elements in the plant matrix. Samples are measured under conditions of high vacuum and slightly elevated temperature, and for that reason herbal matrix is prone to physical changes after analysis. It is important to determine ideal ratio between mass of the sample and the binder that will provide a stable pellet without affecting determination of elements which are present in low concentrations. During this study, two types of plant samples were analysed: fir and pine needles. Samples were collected in 2017 during autumn. The influence of pellet mass (thickness) on elements concentration was examined by measuring pellets prepared from 1, 2, 3, 4 or 5 g of plans material. By preparing pellets with: 0, 5, 10, 15, 20 and 25 % of wax, the influence of binder ratio was examined. Analysis was performed on ARL™ PERFORM’X Sequential Wavelength Dispersive XRay Fluorescence Spectrometer (Thermo Fisher Scientific, Switzerland) combined with ARL software program UniQuant [3]. In both types of plant samples the following elements were determined: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Zn, Sr and Zr. Both fir and pine needles show similar trends. As quantity of binder increases, the concentration of Ca and K increases, because wax as binder can contain small quantities of those elements. Repeatability of elements that were found in higher concentrations (Mg, Al, Si, P, S, Cl, K and Ca) is high, while repeatability for low concentration elements (Ti, Fe, Ni, Zn, Sr) decreases as percent of binder increases. Reason for that phenomenon is that dilution with wax is affecting elements in low concentration more than high concentration elements. For light elements results show small impact of pellet mass on the measurements because observed X-rays have low penetration depth. Elements with higher Z number are usually present in smaller concentrations in plants and such measurements are less precise, especially when the smaller pellet mass is analyzed. We can say that UniQuant, as standardless method of analysis, which uses the advanced Fundamental parameters Algorithms for data processing, is well adjusted and able to deal with analysis of different sample masses. When physical properties of pellets are investigated, addition of 20% of wax provides the most stabile pellets with flattest surface. For adequate pellet stability, recommend mass of pellets should be 4 g, but it has been shown that 3 g is acceptable in the case of a small sample quantity. In case when we have less than 3 g, it is recommended to carefully place sample as thin layer on the top of 3 g of boric acid inert carrier.",
publisher = "Institute of Chemistry of Clermont-Ferrand (ICCF) from the Clermont Auvergne University, CNRS, Sigma-Clermont",
journal = "19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December",
title = "Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF)",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5920"
}

Orlić, J., Ilijević, K., Savić, S. D., Zarić, N. M.,& Gržetić, I.. (2018). Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF). in 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December
Institute of Chemistry of Clermont-Ferrand (ICCF) from the Clermont Auvergne University..
https://hdl.handle.net/21.15107/rcub_cherry_5920

Orlić J, Ilijević K, Savić SD, Zarić NM, Gržetić I. Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF). in 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December. 2018;.
https://hdl.handle.net/21.15107/rcub_cherry_5920 .

Orlić, Jovana, Ilijević, Konstantin, Savić, Slađana D., Zarić, Nenad M., Gržetić, Ivan, "Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF)" in 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December (2018),
https://hdl.handle.net/21.15107/rcub_cherry_5920 .

TY  - CONF
AU  - Orlić, Jovana
AU  - Ilijević, Konstantin
AU  - Savić, Slađana D.
AU  - Zarić, Nenad M.
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://emec19.sciencesconf.org/data/pages/EMEC_19_Book_of_abstract.pdf
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5919
UR  - https://emec19.sciencesconf.org
UR  - http://www.europeanace.com/about/meetings
AB  - Plants are known as good biomonitors in contaminated areas due to their tendency to accumulate toxic metals. Methods based on direct solid sample analysis are more favourable because they avoid utilization of aggressive and toxic agents, which is in line with green chemistry principles [1]. Besides nondestructiveness, X-ray fluorescence spectroscopy (XRF) is suitable for plant analysis because it offers wide linearity range (from ppm level to 100 %) and possibility of analysis of almost whole PSE (from Be to Am) [2]. 
Plant sample preparation procedure for WDXRF analysis includes grinding and drying at 60 C. After obtaining a homogeneous mixture, the plant sample is mixed with a certain amount of binder (Hoechst wax C micropowder) and pressed in a hydraulic press (Retsch PP 25) in order to obtain stable pellet (32 mm diameter). 
The plants are mostly made of light elements (O, N and C) which are transparent for X-rays. During analysis of elements with a higher atomic number, Xrays penetrate quite deep into the sample. It is important to establish the minimum thickness of the pellet that will provide reliable results during determination of the heavier elements in the plant matrix. Samples are measured under conditions of high vacuum and slightly elevated temperature, and for that reason herbal matrix is prone to physical changes after analysis. It is important to determine ideal ratio between mass of the sample and the binder that will provide a stable pellet without affecting determination of elements which are present in low concentrations. 
During this study, two types of plant samples were analysed: fir and pine needles. Samples were collected in 2017 during autumn. The influence of pellet mass (thickness) on elements concentration was examined by measuring pellets prepared from 1, 2, 3, 4 or 5 g of plans material. By preparing pellets with: 0, 5, 10, 15, 20 and 25 % of wax, the influence of binder ratio was examined. Analysis was performed on ARL™ PERFORM’X Sequential Wavelength Dispersive XRay Fluorescence Spectrometer (Thermo Fisher Scientific, Switzerland) combined with ARL software program UniQuant [3]. 
In both types of plant samples the following elements were determined: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Zn, Sr and Zr. Both fir and pine needles show similar trends. As quantity of binder increases, the concentration of Ca and K increases, because wax as binder can contain small quantities of those elements. Repeatability of elements that were found in higher concentrations (Mg, Al, Si, P, S, Cl, K and Ca) is high, while repeatability for low concentration elements (Ti, Fe, Ni, Zn, Sr) decreases as percent of binder increases. Reason for that phenomenon is that dilution with wax is affecting elements in low concentration more than high concentration elements. For light elements results show small impact of pellet mass on the measurements because observed X-rays have low penetration depth. Elements with higher Z number are usually present in smaller concentrations in plants and such measurements are less precise, especially when the smaller pellet mass is analyzed. We can say that UniQuant, as standardless method of analysis, which uses the advanced Fundamental parameters Algorithms for data processing, is well adjusted and able to deal with analysis of different sample masses. 
When physical properties of pellets are investigated, addition of 20% of wax provides the most stabile pellets with flattest surface. For adequate pellet stability, recommend mass of pellets should be 4 g, but it has been shown that 3 g is acceptable in the case of a small sample quantity. In case when we have less than 3 g, it is recommended to carefully place sample as thin layer on the top of 3 g of boric acid inert carrier.
PB  - Institute of Chemistry of Clermont-Ferrand (ICCF) from the Clermont Auvergne University
PB  - CNRS
PB  - Sigma-Clermont
C3  - 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December
T1  - Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF)
IS  - 19
SP  - 134
EP  - 134
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5919
ER  - 

@conference{
author = "Orlić, Jovana and Ilijević, Konstantin and Savić, Slađana D. and Zarić, Nenad M. and Gržetić, Ivan",
year = "2018",
abstract = "Plants are known as good biomonitors in contaminated areas due to their tendency to accumulate toxic metals. Methods based on direct solid sample analysis are more favourable because they avoid utilization of aggressive and toxic agents, which is in line with green chemistry principles [1]. Besides nondestructiveness, X-ray fluorescence spectroscopy (XRF) is suitable for plant analysis because it offers wide linearity range (from ppm level to 100 %) and possibility of analysis of almost whole PSE (from Be to Am) [2]. 
Plant sample preparation procedure for WDXRF analysis includes grinding and drying at 60 C. After obtaining a homogeneous mixture, the plant sample is mixed with a certain amount of binder (Hoechst wax C micropowder) and pressed in a hydraulic press (Retsch PP 25) in order to obtain stable pellet (32 mm diameter). 
The plants are mostly made of light elements (O, N and C) which are transparent for X-rays. During analysis of elements with a higher atomic number, Xrays penetrate quite deep into the sample. It is important to establish the minimum thickness of the pellet that will provide reliable results during determination of the heavier elements in the plant matrix. Samples are measured under conditions of high vacuum and slightly elevated temperature, and for that reason herbal matrix is prone to physical changes after analysis. It is important to determine ideal ratio between mass of the sample and the binder that will provide a stable pellet without affecting determination of elements which are present in low concentrations. 
During this study, two types of plant samples were analysed: fir and pine needles. Samples were collected in 2017 during autumn. The influence of pellet mass (thickness) on elements concentration was examined by measuring pellets prepared from 1, 2, 3, 4 or 5 g of plans material. By preparing pellets with: 0, 5, 10, 15, 20 and 25 % of wax, the influence of binder ratio was examined. Analysis was performed on ARL™ PERFORM’X Sequential Wavelength Dispersive XRay Fluorescence Spectrometer (Thermo Fisher Scientific, Switzerland) combined with ARL software program UniQuant [3]. 
In both types of plant samples the following elements were determined: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Zn, Sr and Zr. Both fir and pine needles show similar trends. As quantity of binder increases, the concentration of Ca and K increases, because wax as binder can contain small quantities of those elements. Repeatability of elements that were found in higher concentrations (Mg, Al, Si, P, S, Cl, K and Ca) is high, while repeatability for low concentration elements (Ti, Fe, Ni, Zn, Sr) decreases as percent of binder increases. Reason for that phenomenon is that dilution with wax is affecting elements in low concentration more than high concentration elements. For light elements results show small impact of pellet mass on the measurements because observed X-rays have low penetration depth. Elements with higher Z number are usually present in smaller concentrations in plants and such measurements are less precise, especially when the smaller pellet mass is analyzed. We can say that UniQuant, as standardless method of analysis, which uses the advanced Fundamental parameters Algorithms for data processing, is well adjusted and able to deal with analysis of different sample masses. 
When physical properties of pellets are investigated, addition of 20% of wax provides the most stabile pellets with flattest surface. For adequate pellet stability, recommend mass of pellets should be 4 g, but it has been shown that 3 g is acceptable in the case of a small sample quantity. In case when we have less than 3 g, it is recommended to carefully place sample as thin layer on the top of 3 g of boric acid inert carrier.",
publisher = "Institute of Chemistry of Clermont-Ferrand (ICCF) from the Clermont Auvergne University, CNRS, Sigma-Clermont",
journal = "19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December",
title = "Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF)",
number = "19",
pages = "134-134",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5919"
}

Orlić, J., Ilijević, K., Savić, S. D., Zarić, N. M.,& Gržetić, I.. (2018). Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF). in 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December
Institute of Chemistry of Clermont-Ferrand (ICCF) from the Clermont Auvergne University.(19), 134-134.
https://hdl.handle.net/21.15107/rcub_cherry_5919

Orlić J, Ilijević K, Savić SD, Zarić NM, Gržetić I. Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF). in 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December. 2018;(19):134-134.
https://hdl.handle.net/21.15107/rcub_cherry_5919 .

Orlić, Jovana, Ilijević, Konstantin, Savić, Slađana D., Zarić, Nenad M., Gržetić, Ivan, "Optimization of the plant sample preparation procedure for metal analysis using Wavelength Dispersive X-Ray Spectroscopy (WDXRF)" in 19th European Meeting on Environmental Chemistry, Royat, France, 4-6th December, no. 19 (2018):134-134,
https://hdl.handle.net/21.15107/rcub_cherry_5919 .

TY  - JOUR
AU  - Vukelić, Gordana
AU  - Cvetković, Olga
AU  - Gržetić, Ivan
AU  - Simić, Miloš
AU  - Miodragović, Zoran
AU  - Lazić, Lazar
AU  - Zarić, Miroljub
AU  - Pešić, Aleksandar
AU  - Vulić, Predrag J.
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2159
AB  - The aim of this work is to assess damage to the City of Belgrade caused by the unfavorable weather condition of hail due to the absence of anti-hail defense of the city, and to argumentatively point out the necessity of introducing new technical-technological systems for preventing the effects of adverse weather conditions. The results are based on the direct correlation-analyses of two real unfavorable weather events and the estimated financial damage caused by these events. The overall calculation also takes into account financial investments (new financial model) necessary to establish two essentially different systems for anti-hail protection. The damage caused by the hail on the territory of the City of Belgrade and the financial investment in anti-hail protection to reduce it are empirically established for the first time. It is shown how the damage could be transformed to profit, as the financial investment in anti-hail protection is lower than the damage that hail can cause.
PB  - Mdpi, Basel
T2  - Sustainability
T1  - Anti-Hail Protection-Assessment of Financial Effects on the Territory of Belgrade
VL  - 10
IS  - 4
DO  - 10.3390/su10041239
ER  - 

@article{
author = "Vukelić, Gordana and Cvetković, Olga and Gržetić, Ivan and Simić, Miloš and Miodragović, Zoran and Lazić, Lazar and Zarić, Miroljub and Pešić, Aleksandar and Vulić, Predrag J.",
year = "2018",
abstract = "The aim of this work is to assess damage to the City of Belgrade caused by the unfavorable weather condition of hail due to the absence of anti-hail defense of the city, and to argumentatively point out the necessity of introducing new technical-technological systems for preventing the effects of adverse weather conditions. The results are based on the direct correlation-analyses of two real unfavorable weather events and the estimated financial damage caused by these events. The overall calculation also takes into account financial investments (new financial model) necessary to establish two essentially different systems for anti-hail protection. The damage caused by the hail on the territory of the City of Belgrade and the financial investment in anti-hail protection to reduce it are empirically established for the first time. It is shown how the damage could be transformed to profit, as the financial investment in anti-hail protection is lower than the damage that hail can cause.",
publisher = "Mdpi, Basel",
journal = "Sustainability",
title = "Anti-Hail Protection-Assessment of Financial Effects on the Territory of Belgrade",
volume = "10",
number = "4",
doi = "10.3390/su10041239"
}

Vukelić, G., Cvetković, O., Gržetić, I., Simić, M., Miodragović, Z., Lazić, L., Zarić, M., Pešić, A.,& Vulić, P. J.. (2018). Anti-Hail Protection-Assessment of Financial Effects on the Territory of Belgrade. in Sustainability
Mdpi, Basel., 10(4).
https://doi.org/10.3390/su10041239

Vukelić G, Cvetković O, Gržetić I, Simić M, Miodragović Z, Lazić L, Zarić M, Pešić A, Vulić PJ. Anti-Hail Protection-Assessment of Financial Effects on the Territory of Belgrade. in Sustainability. 2018;10(4).
doi:10.3390/su10041239 .

Vukelić, Gordana, Cvetković, Olga, Gržetić, Ivan, Simić, Miloš, Miodragović, Zoran, Lazić, Lazar, Zarić, Miroljub, Pešić, Aleksandar, Vulić, Predrag J., "Anti-Hail Protection-Assessment of Financial Effects on the Territory of Belgrade" in Sustainability, 10, no. 4 (2018),
https://doi.org/10.3390/su10041239 . .

TY  - JOUR
AU  - Pavlović, Dragana
AU  - Pavlović, Marija
AU  - Čakmak, Dragan
AU  - Kostić, Olga
AU  - Jarić, Snežana
AU  - Sakan, Sanja M.
AU  - Đorđević, Dragana S.
AU  - Mitrović, Miroslava
AU  - Gržetić, Ivan
AU  - Pavlović, Pavle
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2215
AB  - The main soil properties, concentrations of selected elements (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn), and the chemical speciation of each element were determined in urban soil samples taken from urban parks in four Serbian cities (Belgrade, Panevo, Obrenovac, and Smederevo) exposed to different sources of pollution. Pollution indices (PI, PIN) and factors (MF, ICF, GCF) also were evaluated. The study revealed As and Cd concentrations below the detection limit, whereas the content of Cr, Cu, Fe, Mn, Ni, Pb, and Zn at some sites exceeded the limits established by local regulations, as well as the background values, which may represent an environmental threat. Sequential extraction results show that Fe, Cr, Cu, and Ni were predominantly in the residual fraction at most sites; however, Ni from Panevo and Smederevo also was bound to the reducible fraction. The presence of Pb at all sites and Zn in Smederevo and Belgrade was mainly associated with the reducible and residual fractions. The highest Mn content was found in the reducible fraction, followed by the acid soluble/exchangeable and residual fractions. Based on the obtained indices and factors, the overall soil status at the selected sampling sites was found to range from the warning limit to slightly polluted, whereby Smederevo had the highest risk, and Panevo and the control site the lowest risk of contamination by toxic metals.
PB  - Springer, New York
T2  - Archives of Environmental Contamination and Toxicology
T1  - Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities
VL  - 75
IS  - 3
SP  - 335
EP  - 350
DO  - 10.1007/s00244-018-0518-x
ER  - 

@article{
author = "Pavlović, Dragana and Pavlović, Marija and Čakmak, Dragan and Kostić, Olga and Jarić, Snežana and Sakan, Sanja M. and Đorđević, Dragana S. and Mitrović, Miroslava and Gržetić, Ivan and Pavlović, Pavle",
year = "2018",
abstract = "The main soil properties, concentrations of selected elements (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn), and the chemical speciation of each element were determined in urban soil samples taken from urban parks in four Serbian cities (Belgrade, Panevo, Obrenovac, and Smederevo) exposed to different sources of pollution. Pollution indices (PI, PIN) and factors (MF, ICF, GCF) also were evaluated. The study revealed As and Cd concentrations below the detection limit, whereas the content of Cr, Cu, Fe, Mn, Ni, Pb, and Zn at some sites exceeded the limits established by local regulations, as well as the background values, which may represent an environmental threat. Sequential extraction results show that Fe, Cr, Cu, and Ni were predominantly in the residual fraction at most sites; however, Ni from Panevo and Smederevo also was bound to the reducible fraction. The presence of Pb at all sites and Zn in Smederevo and Belgrade was mainly associated with the reducible and residual fractions. The highest Mn content was found in the reducible fraction, followed by the acid soluble/exchangeable and residual fractions. Based on the obtained indices and factors, the overall soil status at the selected sampling sites was found to range from the warning limit to slightly polluted, whereby Smederevo had the highest risk, and Panevo and the control site the lowest risk of contamination by toxic metals.",
publisher = "Springer, New York",
journal = "Archives of Environmental Contamination and Toxicology",
title = "Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities",
volume = "75",
number = "3",
pages = "335-350",
doi = "10.1007/s00244-018-0518-x"
}

Pavlović, D., Pavlović, M., Čakmak, D., Kostić, O., Jarić, S., Sakan, S. M., Đorđević, D. S., Mitrović, M., Gržetić, I.,& Pavlović, P.. (2018). Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities. in Archives of Environmental Contamination and Toxicology
Springer, New York., 75(3), 335-350.
https://doi.org/10.1007/s00244-018-0518-x

Pavlović D, Pavlović M, Čakmak D, Kostić O, Jarić S, Sakan SM, Đorđević DS, Mitrović M, Gržetić I, Pavlović P. Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities. in Archives of Environmental Contamination and Toxicology. 2018;75(3):335-350.
doi:10.1007/s00244-018-0518-x .

Pavlović, Dragana, Pavlović, Marija, Čakmak, Dragan, Kostić, Olga, Jarić, Snežana, Sakan, Sanja M., Đorđević, Dragana S., Mitrović, Miroslava, Gržetić, Ivan, Pavlović, Pavle, "Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities" in Archives of Environmental Contamination and Toxicology, 75, no. 3 (2018):335-350,
https://doi.org/10.1007/s00244-018-0518-x . .

TY  - JOUR
AU  - Zarić, Nenad M.
AU  - Ilijević, Konstantin
AU  - Stanisavljević, Ljubiša
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2179
AB  - Honeybees have been proposed and used as bioindicators for the last few decades, because of their nature. Until now they have mostly been used to determine the present pollution and to distinguish the differences between the sampling locations and the sampling periods. With the use of multivariate statistical methods honeybees can also be used to distinguish the origin of this pollution. In this study the concentrations of Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Na, Ni, Sr and Zn were measured in the bodies of adult honeybees collected from nine different apiaries in Serbia. With the help of the statistical methods it was established that the least polluted area was the one that has no industrial activities or the intense traffic nearby. The most polluted was the urban region, followed by a region close to thermal power plants and ash disposal site. Using PCA and CA the origin of the analyzed metals were proposed. It was suggested that Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mn and Ni have anthropogenic origin mainly from the intensive agriculture, traffic and coal combustion.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Use of honeybees (Apis mellifera L.) as bioindicators of spatial variations and origin determination of metal pollution in Serbia
VL  - 83
IS  - 6
SP  - 773
EP  - 784
DO  - 10.2298/JSC171110018Z
ER  - 

@article{
author = "Zarić, Nenad M. and Ilijević, Konstantin and Stanisavljević, Ljubiša and Gržetić, Ivan",
year = "2018",
abstract = "Honeybees have been proposed and used as bioindicators for the last few decades, because of their nature. Until now they have mostly been used to determine the present pollution and to distinguish the differences between the sampling locations and the sampling periods. With the use of multivariate statistical methods honeybees can also be used to distinguish the origin of this pollution. In this study the concentrations of Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Na, Ni, Sr and Zn were measured in the bodies of adult honeybees collected from nine different apiaries in Serbia. With the help of the statistical methods it was established that the least polluted area was the one that has no industrial activities or the intense traffic nearby. The most polluted was the urban region, followed by a region close to thermal power plants and ash disposal site. Using PCA and CA the origin of the analyzed metals were proposed. It was suggested that Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mn and Ni have anthropogenic origin mainly from the intensive agriculture, traffic and coal combustion.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Use of honeybees (Apis mellifera L.) as bioindicators of spatial variations and origin determination of metal pollution in Serbia",
volume = "83",
number = "6",
pages = "773-784",
doi = "10.2298/JSC171110018Z"
}

Zarić, N. M., Ilijević, K., Stanisavljević, L.,& Gržetić, I.. (2018). Use of honeybees (Apis mellifera L.) as bioindicators of spatial variations and origin determination of metal pollution in Serbia. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 83(6), 773-784.
https://doi.org/10.2298/JSC171110018Z

Zarić NM, Ilijević K, Stanisavljević L, Gržetić I. Use of honeybees (Apis mellifera L.) as bioindicators of spatial variations and origin determination of metal pollution in Serbia. in Journal of the Serbian Chemical Society. 2018;83(6):773-784.
doi:10.2298/JSC171110018Z .

Zarić, Nenad M., Ilijević, Konstantin, Stanisavljević, Ljubiša, Gržetić, Ivan, "Use of honeybees (Apis mellifera L.) as bioindicators of spatial variations and origin determination of metal pollution in Serbia" in Journal of the Serbian Chemical Society, 83, no. 6 (2018):773-784,
https://doi.org/10.2298/JSC171110018Z . .

TY  - JOUR
AU  - Zarić, Nenad M.
AU  - Deljanin, Isidora
AU  - Ilijević, Konstantin
AU  - Stanisavljević, Ljubiša
AU  - Ristić, Mirjana
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2183
AB  - With the increase in anthropogenic activities metal pollution is also increased and needs to be closely monitored. In this study honeybees were used as bioindicators to monitor metal pollution. Metal pollution in honeybees represents pollution present in air, water and soil. Concentrations of As, Cs, Hg, Mo, Sb, Se, U and V were measured. The aim of this study was to assess spatial and temporal variations of metal concentrations in honeybees. Samples of honeybees were taken at five different regions in Serbia (Belgrade - BG, Pancevo - PA, Pavlis - PV, Mesic - MS, and Kostolac - TPP) during 2014. Spatial variations were observed for Sb, which had higher concentrations in BG compared to all other regions, and for U, with higher concentrations in the TPP region. High concentrations of Sb in BG were attributed to intense traffic, while higher U concentrations in the TPP region are due to the vicinity of coal fired power plants. In order to assess temporal variations at two locations (PA and PV) samples were taken during July and September of 2014 and June, July, August and September of 2015. During 2014 observing months of sampling higher concentrations in July were detected for Sb and U in BG, which is attributed to lifecycle of plants and honeybees. During the same year higher concentrations in September were observed for As, Sb in PA and Hg in PV. This is due to high precipitation during the peak of bee activity in spring/summer of 2014. No differences between months of sampling were detected during 2015. Between 2014 and 2015 statistically significant differences were observed for Hg, Mo and V; all elements had higher concentrations in 2014. This is in accordance with the trend of reduction of metal concentrations in the bodies of honeybees throughout the years in this region.
PB  - Peerj Inc, London
T2  - PEERJ
T1  - Assessment of spatial and temporal variations in trace element concentrations using honeybees (Apis mellifera) as bioindicators
VL  - 6
DO  - 10.7717/peerj.5197
ER  - 

@article{
author = "Zarić, Nenad M. and Deljanin, Isidora and Ilijević, Konstantin and Stanisavljević, Ljubiša and Ristić, Mirjana and Gržetić, Ivan",
year = "2018",
abstract = "With the increase in anthropogenic activities metal pollution is also increased and needs to be closely monitored. In this study honeybees were used as bioindicators to monitor metal pollution. Metal pollution in honeybees represents pollution present in air, water and soil. Concentrations of As, Cs, Hg, Mo, Sb, Se, U and V were measured. The aim of this study was to assess spatial and temporal variations of metal concentrations in honeybees. Samples of honeybees were taken at five different regions in Serbia (Belgrade - BG, Pancevo - PA, Pavlis - PV, Mesic - MS, and Kostolac - TPP) during 2014. Spatial variations were observed for Sb, which had higher concentrations in BG compared to all other regions, and for U, with higher concentrations in the TPP region. High concentrations of Sb in BG were attributed to intense traffic, while higher U concentrations in the TPP region are due to the vicinity of coal fired power plants. In order to assess temporal variations at two locations (PA and PV) samples were taken during July and September of 2014 and June, July, August and September of 2015. During 2014 observing months of sampling higher concentrations in July were detected for Sb and U in BG, which is attributed to lifecycle of plants and honeybees. During the same year higher concentrations in September were observed for As, Sb in PA and Hg in PV. This is due to high precipitation during the peak of bee activity in spring/summer of 2014. No differences between months of sampling were detected during 2015. Between 2014 and 2015 statistically significant differences were observed for Hg, Mo and V; all elements had higher concentrations in 2014. This is in accordance with the trend of reduction of metal concentrations in the bodies of honeybees throughout the years in this region.",
publisher = "Peerj Inc, London",
journal = "PEERJ",
title = "Assessment of spatial and temporal variations in trace element concentrations using honeybees (Apis mellifera) as bioindicators",
volume = "6",
doi = "10.7717/peerj.5197"
}

Zarić, N. M., Deljanin, I., Ilijević, K., Stanisavljević, L., Ristić, M.,& Gržetić, I.. (2018). Assessment of spatial and temporal variations in trace element concentrations using honeybees (Apis mellifera) as bioindicators. in PEERJ
Peerj Inc, London., 6.
https://doi.org/10.7717/peerj.5197

Zarić NM, Deljanin I, Ilijević K, Stanisavljević L, Ristić M, Gržetić I. Assessment of spatial and temporal variations in trace element concentrations using honeybees (Apis mellifera) as bioindicators. in PEERJ. 2018;6.
doi:10.7717/peerj.5197 .

Zarić, Nenad M., Deljanin, Isidora, Ilijević, Konstantin, Stanisavljević, Ljubiša, Ristić, Mirjana, Gržetić, Ivan, "Assessment of spatial and temporal variations in trace element concentrations using honeybees (Apis mellifera) as bioindicators" in PEERJ, 6 (2018),
https://doi.org/10.7717/peerj.5197 . .

TY  - JOUR
AU  - Zarić, Nenad M.
AU  - Deljanin, Isidora
AU  - Ilijević, Konstantin
AU  - Stanisavljević, Ljubiša
AU  - Ristić, Mirjana
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2187
AB  - In this study, honeybees were used to determine spatio-temporal variations and origin sources of Pb. Lead concentrations and isotopic composition were used in combination with selected statistical methods. The sampling was carried out at five different locations in Serbia: urban region (BG), petrochemical industry (PA), suburban region (PV), rural region (MS) and thermal power plant region (TPP) during 2014. At PA and PV locations, samples were taken during multiple years. This is the first use of Kohonen self-organizing map (SOM) in combination with honeybees as bioindicators to determine spatio-temporal variations and origin of Pb pollution. It was observed that during the years Pb concentrations were in decline. Anthropogenic sources are most dominant in BG and TPP, in PA there are mixed sources of natural and anthropogenic origin and in PV Pb is of natural origin. It can be concluded that honeybees in combination with SOM can be used to differentiate between slight changes in spatio-temporal variations of Pb, as well as for source appointment. (C) 2018 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Science of the Total Environment
T1  - Honeybees as sentinels of lead pollution: Spatio-temporal variations and source appointment using stable isotopes and Kohonen self-organizing maps
VL  - 642
SP  - 56
EP  - 62
DO  - 10.1016/j.scitotenv.2018.06.040
ER  - 

@article{
author = "Zarić, Nenad M. and Deljanin, Isidora and Ilijević, Konstantin and Stanisavljević, Ljubiša and Ristić, Mirjana and Gržetić, Ivan",
year = "2018",
abstract = "In this study, honeybees were used to determine spatio-temporal variations and origin sources of Pb. Lead concentrations and isotopic composition were used in combination with selected statistical methods. The sampling was carried out at five different locations in Serbia: urban region (BG), petrochemical industry (PA), suburban region (PV), rural region (MS) and thermal power plant region (TPP) during 2014. At PA and PV locations, samples were taken during multiple years. This is the first use of Kohonen self-organizing map (SOM) in combination with honeybees as bioindicators to determine spatio-temporal variations and origin of Pb pollution. It was observed that during the years Pb concentrations were in decline. Anthropogenic sources are most dominant in BG and TPP, in PA there are mixed sources of natural and anthropogenic origin and in PV Pb is of natural origin. It can be concluded that honeybees in combination with SOM can be used to differentiate between slight changes in spatio-temporal variations of Pb, as well as for source appointment. (C) 2018 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Science of the Total Environment",
title = "Honeybees as sentinels of lead pollution: Spatio-temporal variations and source appointment using stable isotopes and Kohonen self-organizing maps",
volume = "642",
pages = "56-62",
doi = "10.1016/j.scitotenv.2018.06.040"
}

Zarić, N. M., Deljanin, I., Ilijević, K., Stanisavljević, L., Ristić, M.,& Gržetić, I.. (2018). Honeybees as sentinels of lead pollution: Spatio-temporal variations and source appointment using stable isotopes and Kohonen self-organizing maps. in Science of the Total Environment
Elsevier Science Bv, Amsterdam., 642, 56-62.
https://doi.org/10.1016/j.scitotenv.2018.06.040

Zarić NM, Deljanin I, Ilijević K, Stanisavljević L, Ristić M, Gržetić I. Honeybees as sentinels of lead pollution: Spatio-temporal variations and source appointment using stable isotopes and Kohonen self-organizing maps. in Science of the Total Environment. 2018;642:56-62.
doi:10.1016/j.scitotenv.2018.06.040 .

Zarić, Nenad M., Deljanin, Isidora, Ilijević, Konstantin, Stanisavljević, Ljubiša, Ristić, Mirjana, Gržetić, Ivan, "Honeybees as sentinels of lead pollution: Spatio-temporal variations and source appointment using stable isotopes and Kohonen self-organizing maps" in Science of the Total Environment, 642 (2018):56-62,
https://doi.org/10.1016/j.scitotenv.2018.06.040 . .

TY  - DATA
AU  - Zarić, Nenad M.
AU  - Deljanin, Isidora
AU  - Ilijević, Konstantin
AU  - Stanisavljević, Ljubiša
AU  - Ristić, Mirjana
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3174
PB  - Peerj Inc, London
T2  - PEERJ
T1  - Supplementary material for the article: Zaric, N. M.; Deljanin, I.; Ilijević, K.; Stanisavljević, L.; Ristić, M.; Gržetić, I. Assessment of  Spatial and Temporal Variations in Trace Element Concentrations Using Honeybees (Apis  Mellifera) as Bioindicators. PeerJ 2018, 2018 (7). https://doi.org/10.7717/peerj.5197
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3174
ER  - 

@misc{
author = "Zarić, Nenad M. and Deljanin, Isidora and Ilijević, Konstantin and Stanisavljević, Ljubiša and Ristić, Mirjana and Gržetić, Ivan",
year = "2018",
publisher = "Peerj Inc, London",
journal = "PEERJ",
title = "Supplementary material for the article: Zaric, N. M.; Deljanin, I.; Ilijević, K.; Stanisavljević, L.; Ristić, M.; Gržetić, I. Assessment of  Spatial and Temporal Variations in Trace Element Concentrations Using Honeybees (Apis  Mellifera) as Bioindicators. PeerJ 2018, 2018 (7). https://doi.org/10.7717/peerj.5197",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3174"
}

Zarić, N. M., Deljanin, I., Ilijević, K., Stanisavljević, L., Ristić, M.,& Gržetić, I.. (2018). Supplementary material for the article: Zaric, N. M.; Deljanin, I.; Ilijević, K.; Stanisavljević, L.; Ristić, M.; Gržetić, I. Assessment of  Spatial and Temporal Variations in Trace Element Concentrations Using Honeybees (Apis  Mellifera) as Bioindicators. PeerJ 2018, 2018 (7). https://doi.org/10.7717/peerj.5197. in PEERJ
Peerj Inc, London..
https://hdl.handle.net/21.15107/rcub_cherry_3174

Zarić NM, Deljanin I, Ilijević K, Stanisavljević L, Ristić M, Gržetić I. Supplementary material for the article: Zaric, N. M.; Deljanin, I.; Ilijević, K.; Stanisavljević, L.; Ristić, M.; Gržetić, I. Assessment of  Spatial and Temporal Variations in Trace Element Concentrations Using Honeybees (Apis  Mellifera) as Bioindicators. PeerJ 2018, 2018 (7). https://doi.org/10.7717/peerj.5197. in PEERJ. 2018;.
https://hdl.handle.net/21.15107/rcub_cherry_3174 .

Zarić, Nenad M., Deljanin, Isidora, Ilijević, Konstantin, Stanisavljević, Ljubiša, Ristić, Mirjana, Gržetić, Ivan, "Supplementary material for the article: Zaric, N. M.; Deljanin, I.; Ilijević, K.; Stanisavljević, L.; Ristić, M.; Gržetić, I. Assessment of  Spatial and Temporal Variations in Trace Element Concentrations Using Honeybees (Apis  Mellifera) as Bioindicators. PeerJ 2018, 2018 (7). https://doi.org/10.7717/peerj.5197" in PEERJ (2018),
https://hdl.handle.net/21.15107/rcub_cherry_3174 .

TY  - DATA
AU  - Zarić, Nenad M.
AU  - Ilijević, Konstantin
AU  - Stanisavljević, Ljubiša
AU  - Gržetić, Ivan
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3312
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Supplementary data for the article: Zarić, N. M.; Ilijević, K.; Stanisavljević, L.; Gržetić, I. Use of Honeybees (Apis Mellifera L.) as Bioindicators of Spatial Variations and Origin Determination of Metal Pollution in Serbia. Journal of the Serbian Chemical Society 2018, 83 (6), 773–784. https://doi.org/10.2298/JSC171110018Z
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3312
ER  - 

@misc{
author = "Zarić, Nenad M. and Ilijević, Konstantin and Stanisavljević, Ljubiša and Gržetić, Ivan",
year = "2018",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Supplementary data for the article: Zarić, N. M.; Ilijević, K.; Stanisavljević, L.; Gržetić, I. Use of Honeybees (Apis Mellifera L.) as Bioindicators of Spatial Variations and Origin Determination of Metal Pollution in Serbia. Journal of the Serbian Chemical Society 2018, 83 (6), 773–784. https://doi.org/10.2298/JSC171110018Z",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3312"
}

Zarić, N. M., Ilijević, K., Stanisavljević, L.,& Gržetić, I.. (2018). Supplementary data for the article: Zarić, N. M.; Ilijević, K.; Stanisavljević, L.; Gržetić, I. Use of Honeybees (Apis Mellifera L.) as Bioindicators of Spatial Variations and Origin Determination of Metal Pollution in Serbia. Journal of the Serbian Chemical Society 2018, 83 (6), 773–784. https://doi.org/10.2298/JSC171110018Z. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade..
https://hdl.handle.net/21.15107/rcub_cherry_3312

Zarić NM, Ilijević K, Stanisavljević L, Gržetić I. Supplementary data for the article: Zarić, N. M.; Ilijević, K.; Stanisavljević, L.; Gržetić, I. Use of Honeybees (Apis Mellifera L.) as Bioindicators of Spatial Variations and Origin Determination of Metal Pollution in Serbia. Journal of the Serbian Chemical Society 2018, 83 (6), 773–784. https://doi.org/10.2298/JSC171110018Z. in Journal of the Serbian Chemical Society. 2018;.
https://hdl.handle.net/21.15107/rcub_cherry_3312 .

Zarić, Nenad M., Ilijević, Konstantin, Stanisavljević, Ljubiša, Gržetić, Ivan, "Supplementary data for the article: Zarić, N. M.; Ilijević, K.; Stanisavljević, L.; Gržetić, I. Use of Honeybees (Apis Mellifera L.) as Bioindicators of Spatial Variations and Origin Determination of Metal Pollution in Serbia. Journal of the Serbian Chemical Society 2018, 83 (6), 773–784. https://doi.org/10.2298/JSC171110018Z" in Journal of the Serbian Chemical Society (2018),
https://hdl.handle.net/21.15107/rcub_cherry_3312 .

TY  - JOUR
AU  - Pavlović, Dragana
AU  - Pavlović, Marija
AU  - Markovic, Milica
AU  - Karadzic, Branko
AU  - Kostić, Olga
AU  - Jarić, Snežana
AU  - Mitrović, Miroslava
AU  - Gržetić, Ivan
AU  - Pavlović, Pavle
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2509
AB  - In this study, both seasonal and spatial variations in trace metal uptake, as well as concentration of photosynthetic pigments in Silver birch (Betula pendula Roth.) trees in five urban parks in Pancevo, Smederevo, Obrenovac and Belgrade ( Serbia) affected by different anthropogenic activities were studied. The characteristics of soil were assessed in terms of texture, pH and trace element content. Concentrations of boron, strontium and zinc in both leaves and bark showed an increasing temporal trend, however, copper showed an opposite seasonal trend. A higher accumulation of trace elements was noticed in leaves compared to bark. The obtained results for photosynthetic pigments showed low sensitivity of birch to B, Cu, Sr and Zn contamination, indicating that birch tolerates pollution and climate stress by increasing the amount of pigments. Analysis of the effects on soil chemistry of trace element accumulation in plant tissues proved that soil chemistry poorly explains the variability of elements in bark (27.6 %) compared to leaves (82.99 %). Discriminant analysis showed that Belgrade and Smederevo are clearly separated from the other three sites.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Possibilities of assessing trace metal pollution using Betula pendula Roth. leaf and bark - Experience in Serbia
VL  - 82
IS  - 6
SP  - 723
EP  - 737
DO  - 10.2298/JSC170113024P
ER  - 

@article{
author = "Pavlović, Dragana and Pavlović, Marija and Markovic, Milica and Karadzic, Branko and Kostić, Olga and Jarić, Snežana and Mitrović, Miroslava and Gržetić, Ivan and Pavlović, Pavle",
year = "2017",
abstract = "In this study, both seasonal and spatial variations in trace metal uptake, as well as concentration of photosynthetic pigments in Silver birch (Betula pendula Roth.) trees in five urban parks in Pancevo, Smederevo, Obrenovac and Belgrade ( Serbia) affected by different anthropogenic activities were studied. The characteristics of soil were assessed in terms of texture, pH and trace element content. Concentrations of boron, strontium and zinc in both leaves and bark showed an increasing temporal trend, however, copper showed an opposite seasonal trend. A higher accumulation of trace elements was noticed in leaves compared to bark. The obtained results for photosynthetic pigments showed low sensitivity of birch to B, Cu, Sr and Zn contamination, indicating that birch tolerates pollution and climate stress by increasing the amount of pigments. Analysis of the effects on soil chemistry of trace element accumulation in plant tissues proved that soil chemistry poorly explains the variability of elements in bark (27.6 %) compared to leaves (82.99 %). Discriminant analysis showed that Belgrade and Smederevo are clearly separated from the other three sites.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Possibilities of assessing trace metal pollution using Betula pendula Roth. leaf and bark - Experience in Serbia",
volume = "82",
number = "6",
pages = "723-737",
doi = "10.2298/JSC170113024P"
}

Pavlović, D., Pavlović, M., Markovic, M., Karadzic, B., Kostić, O., Jarić, S., Mitrović, M., Gržetić, I.,& Pavlović, P.. (2017). Possibilities of assessing trace metal pollution using Betula pendula Roth. leaf and bark - Experience in Serbia. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 82(6), 723-737.
https://doi.org/10.2298/JSC170113024P

Pavlović D, Pavlović M, Markovic M, Karadzic B, Kostić O, Jarić S, Mitrović M, Gržetić I, Pavlović P. Possibilities of assessing trace metal pollution using Betula pendula Roth. leaf and bark - Experience in Serbia. in Journal of the Serbian Chemical Society. 2017;82(6):723-737.
doi:10.2298/JSC170113024P .

Pavlović, Dragana, Pavlović, Marija, Markovic, Milica, Karadzic, Branko, Kostić, Olga, Jarić, Snežana, Mitrović, Miroslava, Gržetić, Ivan, Pavlović, Pavle, "Possibilities of assessing trace metal pollution using Betula pendula Roth. leaf and bark - Experience in Serbia" in Journal of the Serbian Chemical Society, 82, no. 6 (2017):723-737,
https://doi.org/10.2298/JSC170113024P . .

TY  - JOUR
AU  - Šoštarić, Andrej I.
AU  - Stanišić-Stojić, Svetlana M.
AU  - Vuković, Gordana P.
AU  - Mijić, Zoran
AU  - Stojić, Andreja
AU  - Gržetić, Ivan
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2539
AB  - The contribution of atmospheric precipitation to volatile organic compound (VOC) removal from the atmosphere remains a matter of scientific debate. The aim of this study was to examine the potential of rainwater for benzene, toluene, ethylbenzene and xylene (BTEX) scavenging from ambient air. To that end, air and rainwater samples were collected simultaneously during several rain events that occurred over two distinct time periods in the summer and autumn of 2015. BTEX concentrations in the gaseous and aqueous phases were determined using proton transfer reaction mass spectrometry. The results reveal that the registered amounts of BTEX in rainwater samples were higher than those predicted by Henry's law. Additional analysis, including physico-chemical characterization and source apportionment, was performed and a possible mechanism underlying the BTEX adsorption to the aqueous phase was considered and discussed herein. Finally, regression multivariate methods (MVA) were successfully applied (with relative errors from 20%) to examine the functional dependency of BTEX enrichment factor on gaseous concentrations, physico-chemical properties of rainwater and meteorological parameters.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Atmospheric Environment
T1  - Rainwater capacities for BTEX scavenging from ambient air
VL  - 168
SP  - 46
EP  - 54
DO  - 10.1016/j.atmosenv.2017.08.045
ER  - 

@article{
author = "Šoštarić, Andrej I. and Stanišić-Stojić, Svetlana M. and Vuković, Gordana P. and Mijić, Zoran and Stojić, Andreja and Gržetić, Ivan",
year = "2017",
abstract = "The contribution of atmospheric precipitation to volatile organic compound (VOC) removal from the atmosphere remains a matter of scientific debate. The aim of this study was to examine the potential of rainwater for benzene, toluene, ethylbenzene and xylene (BTEX) scavenging from ambient air. To that end, air and rainwater samples were collected simultaneously during several rain events that occurred over two distinct time periods in the summer and autumn of 2015. BTEX concentrations in the gaseous and aqueous phases were determined using proton transfer reaction mass spectrometry. The results reveal that the registered amounts of BTEX in rainwater samples were higher than those predicted by Henry's law. Additional analysis, including physico-chemical characterization and source apportionment, was performed and a possible mechanism underlying the BTEX adsorption to the aqueous phase was considered and discussed herein. Finally, regression multivariate methods (MVA) were successfully applied (with relative errors from 20%) to examine the functional dependency of BTEX enrichment factor on gaseous concentrations, physico-chemical properties of rainwater and meteorological parameters.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Atmospheric Environment",
title = "Rainwater capacities for BTEX scavenging from ambient air",
volume = "168",
pages = "46-54",
doi = "10.1016/j.atmosenv.2017.08.045"
}

Šoštarić, A. I., Stanišić-Stojić, S. M., Vuković, G. P., Mijić, Z., Stojić, A.,& Gržetić, I.. (2017). Rainwater capacities for BTEX scavenging from ambient air. in Atmospheric Environment
Pergamon-Elsevier Science Ltd, Oxford., 168, 46-54.
https://doi.org/10.1016/j.atmosenv.2017.08.045

Šoštarić AI, Stanišić-Stojić SM, Vuković GP, Mijić Z, Stojić A, Gržetić I. Rainwater capacities for BTEX scavenging from ambient air. in Atmospheric Environment. 2017;168:46-54.
doi:10.1016/j.atmosenv.2017.08.045 .

Šoštarić, Andrej I., Stanišić-Stojić, Svetlana M., Vuković, Gordana P., Mijić, Zoran, Stojić, Andreja, Gržetić, Ivan, "Rainwater capacities for BTEX scavenging from ambient air" in Atmospheric Environment, 168 (2017):46-54,
https://doi.org/10.1016/j.atmosenv.2017.08.045 . .

TY  - JOUR
AU  - Zarić, Nenad M.
AU  - Ilijević, Konstantin
AU  - Stanisavljević, Ljubiša
AU  - Gržetić, Ivan
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2555
AB  - The ability of honeybees to collect particulate matter (PM) on their bodies makes them outstanding bioindicators. In this study, two cities, Pancevo (PA) and Vrac (VS), South Banat district, Vojvodina, Serbia, were covered with two sampling sites each. The aims of this study were to determine concentrations of Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Na, Ni, Sr, and Zn in the bodies of honeybees during July and September of 2013, 2014, and 2015 and to analyze their spatial and temporal variations and sources of analyzed elements, as well as to assess pollution levels in the two cities. Significant temporal differences were found for Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Na, Ni, and Zn. Trend of reduction in metal concentrations in bodies of honeybees during the years was observed. Statistically significant spatial variations were observed for Al, Ba, and Sr, with higher concentrations in VS. PCA and CA analyses were used for the first time to assess sources of metals found in honeybees. These analyses showed two sources of metals. Co, Cd, Na, Fe, Mn, Zn, and partly Cu were contributed to anthropogenic sources, while Ca, Al, Mg, Cr, Ba, Sr, and Ni were contributed to natural sources.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Use of honeybees (Apis mellifera L.) as bioindicators for assessment and source appointment of metal pollution
VL  - 24
IS  - 33
SP  - 25828
EP  - 25838
DO  - 10.1007/s11356-017-0196-7
ER  - 

@article{
author = "Zarić, Nenad M. and Ilijević, Konstantin and Stanisavljević, Ljubiša and Gržetić, Ivan",
year = "2017",
abstract = "The ability of honeybees to collect particulate matter (PM) on their bodies makes them outstanding bioindicators. In this study, two cities, Pancevo (PA) and Vrac (VS), South Banat district, Vojvodina, Serbia, were covered with two sampling sites each. The aims of this study were to determine concentrations of Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Na, Ni, Sr, and Zn in the bodies of honeybees during July and September of 2013, 2014, and 2015 and to analyze their spatial and temporal variations and sources of analyzed elements, as well as to assess pollution levels in the two cities. Significant temporal differences were found for Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Na, Ni, and Zn. Trend of reduction in metal concentrations in bodies of honeybees during the years was observed. Statistically significant spatial variations were observed for Al, Ba, and Sr, with higher concentrations in VS. PCA and CA analyses were used for the first time to assess sources of metals found in honeybees. These analyses showed two sources of metals. Co, Cd, Na, Fe, Mn, Zn, and partly Cu were contributed to anthropogenic sources, while Ca, Al, Mg, Cr, Ba, Sr, and Ni were contributed to natural sources.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Use of honeybees (Apis mellifera L.) as bioindicators for assessment and source appointment of metal pollution",
volume = "24",
number = "33",
pages = "25828-25838",
doi = "10.1007/s11356-017-0196-7"
}

Zarić, N. M., Ilijević, K., Stanisavljević, L.,& Gržetić, I.. (2017). Use of honeybees (Apis mellifera L.) as bioindicators for assessment and source appointment of metal pollution. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 24(33), 25828-25838.
https://doi.org/10.1007/s11356-017-0196-7

Zarić NM, Ilijević K, Stanisavljević L, Gržetić I. Use of honeybees (Apis mellifera L.) as bioindicators for assessment and source appointment of metal pollution. in Environmental Science and Pollution Research. 2017;24(33):25828-25838.
doi:10.1007/s11356-017-0196-7 .

Zarić, Nenad M., Ilijević, Konstantin, Stanisavljević, Ljubiša, Gržetić, Ivan, "Use of honeybees (Apis mellifera L.) as bioindicators for assessment and source appointment of metal pollution" in Environmental Science and Pollution Research, 24, no. 33 (2017):25828-25838,
https://doi.org/10.1007/s11356-017-0196-7 . .