TY  - CONF
AU  - Orlić, Jovana
AU  - Kukobat, L.
AU  - Vidojević, D.
AU  - Filipović, S.
AU  - Kojić, D.
AU  - Blagojević, D. P.
AU  - Ilijević, Konstantin
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4913
AB  - Toxic metals in soil are routinely determined by several analytical spectroscopic techniques (Atomic Absorption Spectrometry AAS, Inductively Coupled Plasma Optical Emission Spectrometry ICP-OES,and Inductively Coupled Plasma Mass Spectrometry ICPMS)[1]. Those techniques measure metals from aqueous samples. Procedures of sample dissolution or extraction typically involve a lengthy process which requires the use of harsh conditions. Sample preparation procedures make these routinely used techniques generally time-consuming and too expensive [2]. On the other side, the need for reliable, economical, and environmental friendly technique for soil composition measuring has been growing in the environmental field, so has the demand for time and cost-efficient analytical methods for soil analysis [3]. X-ray fluorescence spectrometry (XRF) is a multi-element analytical technique for direct, non-destructive analysis of various materials (including soils) with minimal sample preparation. The most attractive advantage of XRF is the wide dynamic range (from mg kg-1 to 100%). A portable X-ray fluorescence spectrometer (PXRF) is also capable of in-situ analysis in a short time (30–120 s) [4]. In situ PXRF analysis provides flexibility and allows rapid collection of data for a large number of samples, andproduces real-time data that can be used for rapid decision making. It is well-known that the physical characteristics of the sample play an important role in obtaining accurate results when it comes to XRF methods. Therefore it is important to determine how reliable in situ PXRF results are. Analytical accuracy and precision could be generally improved if adequate sample preparation procedure is applied compared to in situ measurements. The aim of this research was to determinate in what extent sample preparation procedure changes measured concentrations of elements and is that change the same for all investigated elements. Does soil sample homogenization or further pressing into the compact pellet systematically affect measured concentrations? Soil samples from 32 industrial, potentially contaminated sites were collected from a depth of 10 cm, 30 cm, and 50 cm. Such soils provide wide concentration range of different elements. Samples were first directly analyzed in the field, without any sample preparation using the Thermo Scientific™ Niton™ XL3t GOLDD+ PXRF Analyzer. The second PXRF analysis was performed in the laboratory on the dry,ground, and homogenized soil powder sample. One aliquot of soil powder was digested for AAS analysis, while another aliquot was pressed into a 32 mm diameter pellet and analyzed using PXRF. The quality control program involves comparison of the results with AAS reference technique. Additionally, certified reference materials of stream sediment (STSD-3) and soil (NCS DC 77301) are analyzed with different sample preparation procedures.
PB  - Belgrade : Serbian Chemical Society
C3  - Book of Abstracts 21st; European Meeting on Environmental Chemistry
T1  - Effect of Sample Preparation on Portable X-Ray Fluorescence Spectrometry Analysis of Contaminated Soils
SP  - 93
EP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4913
ER  - 

@conference{
author = "Orlić, Jovana and Kukobat, L. and Vidojević, D. and Filipović, S. and Kojić, D. and Blagojević, D. P. and Ilijević, Konstantin",
year = "2021",
abstract = "Toxic metals in soil are routinely determined by several analytical spectroscopic techniques (Atomic Absorption Spectrometry AAS, Inductively Coupled Plasma Optical Emission Spectrometry ICP-OES,and Inductively Coupled Plasma Mass Spectrometry ICPMS)[1]. Those techniques measure metals from aqueous samples. Procedures of sample dissolution or extraction typically involve a lengthy process which requires the use of harsh conditions. Sample preparation procedures make these routinely used techniques generally time-consuming and too expensive [2]. On the other side, the need for reliable, economical, and environmental friendly technique for soil composition measuring has been growing in the environmental field, so has the demand for time and cost-efficient analytical methods for soil analysis [3]. X-ray fluorescence spectrometry (XRF) is a multi-element analytical technique for direct, non-destructive analysis of various materials (including soils) with minimal sample preparation. The most attractive advantage of XRF is the wide dynamic range (from mg kg-1 to 100%). A portable X-ray fluorescence spectrometer (PXRF) is also capable of in-situ analysis in a short time (30–120 s) [4]. In situ PXRF analysis provides flexibility and allows rapid collection of data for a large number of samples, andproduces real-time data that can be used for rapid decision making. It is well-known that the physical characteristics of the sample play an important role in obtaining accurate results when it comes to XRF methods. Therefore it is important to determine how reliable in situ PXRF results are. Analytical accuracy and precision could be generally improved if adequate sample preparation procedure is applied compared to in situ measurements. The aim of this research was to determinate in what extent sample preparation procedure changes measured concentrations of elements and is that change the same for all investigated elements. Does soil sample homogenization or further pressing into the compact pellet systematically affect measured concentrations? Soil samples from 32 industrial, potentially contaminated sites were collected from a depth of 10 cm, 30 cm, and 50 cm. Such soils provide wide concentration range of different elements. Samples were first directly analyzed in the field, without any sample preparation using the Thermo Scientific™ Niton™ XL3t GOLDD+ PXRF Analyzer. The second PXRF analysis was performed in the laboratory on the dry,ground, and homogenized soil powder sample. One aliquot of soil powder was digested for AAS analysis, while another aliquot was pressed into a 32 mm diameter pellet and analyzed using PXRF. The quality control program involves comparison of the results with AAS reference technique. Additionally, certified reference materials of stream sediment (STSD-3) and soil (NCS DC 77301) are analyzed with different sample preparation procedures.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Book of Abstracts 21st; European Meeting on Environmental Chemistry",
title = "Effect of Sample Preparation on Portable X-Ray Fluorescence Spectrometry Analysis of Contaminated Soils",
pages = "93-93",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4913"
}

Orlić, J., Kukobat, L., Vidojević, D., Filipović, S., Kojić, D., Blagojević, D. P.,& Ilijević, K.. (2021). Effect of Sample Preparation on Portable X-Ray Fluorescence Spectrometry Analysis of Contaminated Soils. in Book of Abstracts 21st; European Meeting on Environmental Chemistry
Belgrade : Serbian Chemical Society., 93-93.
https://hdl.handle.net/21.15107/rcub_cherry_4913

Orlić J, Kukobat L, Vidojević D, Filipović S, Kojić D, Blagojević DP, Ilijević K. Effect of Sample Preparation on Portable X-Ray Fluorescence Spectrometry Analysis of Contaminated Soils. in Book of Abstracts 21st; European Meeting on Environmental Chemistry. 2021;:93-93.
https://hdl.handle.net/21.15107/rcub_cherry_4913 .

Orlić, Jovana, Kukobat, L., Vidojević, D., Filipović, S., Kojić, D., Blagojević, D. P., Ilijević, Konstantin, "Effect of Sample Preparation on Portable X-Ray Fluorescence Spectrometry Analysis of Contaminated Soils" in Book of Abstracts 21st; European Meeting on Environmental Chemistry (2021):93-93,
https://hdl.handle.net/21.15107/rcub_cherry_4913 .

TY  - JOUR
AU  - Filipović, S.
AU  - Anđelković, Ljubica
AU  - Jeremić, Dejan
AU  - Vulić, P.
AU  - Nikolić, A. S.
AU  - Marković, S.
AU  - Paunović, V.
AU  - Lević, Steva M.
AU  - Pavlović, Vladimir B.
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4301
AB  - Barium titanate (BaTiO3) attracts high scientific and technological attention due to good dielectric and electromechanical properties. Although BaTiO3 is one of the most frequently investigated ferroelectric materials, the need for finding new and/or improved synthesis methods of this material still exists. In this paper, a novel, mild synthesis route for producing tetragonal BaTiO3 from barium nitrate and Ti-oxalate precursor is presented. Morphology of the prepared and subsequently sintered BaTiO3 was determined by SEM. Particle size distribution of the as prepared powder was monitored by the laser diffraction. The phase composition, structure and lattice dynamics were investigated by XRD and Raman spectroscopy. Finally, dielectric parameters were determined in the temperature range from 30 to 180ºC, and within a variety of frequencies. Curie temperature was detected at 130ºC.
PB  - Association for ETRAN Society
T2  - Science of Sintering
T1  - Structure and properties of nanocrystalline tetragonal BaTiO3 prepared by combustion solid state synthesis
VL  - 52
IS  - 3
SP  - 257
EP  - 268
DO  - 10.2298/SOS2003257F
ER  - 

@article{
author = "Filipović, S. and Anđelković, Ljubica and Jeremić, Dejan and Vulić, P. and Nikolić, A. S. and Marković, S. and Paunović, V. and Lević, Steva M. and Pavlović, Vladimir B.",
year = "2020",
abstract = "Barium titanate (BaTiO3) attracts high scientific and technological attention due to good dielectric and electromechanical properties. Although BaTiO3 is one of the most frequently investigated ferroelectric materials, the need for finding new and/or improved synthesis methods of this material still exists. In this paper, a novel, mild synthesis route for producing tetragonal BaTiO3 from barium nitrate and Ti-oxalate precursor is presented. Morphology of the prepared and subsequently sintered BaTiO3 was determined by SEM. Particle size distribution of the as prepared powder was monitored by the laser diffraction. The phase composition, structure and lattice dynamics were investigated by XRD and Raman spectroscopy. Finally, dielectric parameters were determined in the temperature range from 30 to 180ºC, and within a variety of frequencies. Curie temperature was detected at 130ºC.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering",
title = "Structure and properties of nanocrystalline tetragonal BaTiO3 prepared by combustion solid state synthesis",
volume = "52",
number = "3",
pages = "257-268",
doi = "10.2298/SOS2003257F"
}

Filipović, S., Anđelković, L., Jeremić, D., Vulić, P., Nikolić, A. S., Marković, S., Paunović, V., Lević, S. M.,& Pavlović, V. B.. (2020). Structure and properties of nanocrystalline tetragonal BaTiO3 prepared by combustion solid state synthesis. in Science of Sintering
Association for ETRAN Society., 52(3), 257-268.
https://doi.org/10.2298/SOS2003257F

Filipović S, Anđelković L, Jeremić D, Vulić P, Nikolić AS, Marković S, Paunović V, Lević SM, Pavlović VB. Structure and properties of nanocrystalline tetragonal BaTiO3 prepared by combustion solid state synthesis. in Science of Sintering. 2020;52(3):257-268.
doi:10.2298/SOS2003257F .

Filipović, S., Anđelković, Ljubica, Jeremić, Dejan, Vulić, P., Nikolić, A. S., Marković, S., Paunović, V., Lević, Steva M., Pavlović, Vladimir B., "Structure and properties of nanocrystalline tetragonal BaTiO3 prepared by combustion solid state synthesis" in Science of Sintering, 52, no. 3 (2020):257-268,
https://doi.org/10.2298/SOS2003257F . .