TY  - JOUR
AU  - Anđelković, Ivan
AU  - Amaizah, N. R. R.
AU  - Marković, Sanja B.
AU  - Stanković, Dalibor
AU  - Markovic, M.
AU  - Kuzmanović, Darko
AU  - Roglić, Goran
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2494
AB  - Using the microwave-hydrothermal method for the synthesis of composite, high surface density of hydroxyl groups, as an active adsorption sites for arsenic, was obtained. Adsorption mechanisms of As(III) and As(V) onto zirconium-doped titanium dioxide (Zr-TiO2) were investigated and proposed using macroscopic and microscopic methods. Obtained results are suggesting inner-sphere and outer-sphere adsorption mechanisms for As(III) and As(V), respectively. This allowed us to identify parameters that are critical for the successful removal of arsenic from water, which is essential information for further optimization of the removal process. The composite was further applied for the removal of As(III) and As(V) from water in a dynamic flow through the reactor. Column study proved that the removal of both arsenic species below the value recommended by WHO can be achieved. Elution of As(III) and As(V) from the composite can be done by using small amounts of 0.01M NaOH solution resulting in preconcentration of arsenic species and possible multiple usage of composite.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Environmental Technology
T1  - Investigation of mechanism and critical parameters for removal of arsenic from water using Zr-TiO2 composite
VL  - 38
IS  - 17
SP  - 2233
EP  - 2240
DO  - 10.1080/09593330.2016.1255664
ER  - 

@article{
author = "Anđelković, Ivan and Amaizah, N. R. R. and Marković, Sanja B. and Stanković, Dalibor and Markovic, M. and Kuzmanović, Darko and Roglić, Goran",
year = "2017",
abstract = "Using the microwave-hydrothermal method for the synthesis of composite, high surface density of hydroxyl groups, as an active adsorption sites for arsenic, was obtained. Adsorption mechanisms of As(III) and As(V) onto zirconium-doped titanium dioxide (Zr-TiO2) were investigated and proposed using macroscopic and microscopic methods. Obtained results are suggesting inner-sphere and outer-sphere adsorption mechanisms for As(III) and As(V), respectively. This allowed us to identify parameters that are critical for the successful removal of arsenic from water, which is essential information for further optimization of the removal process. The composite was further applied for the removal of As(III) and As(V) from water in a dynamic flow through the reactor. Column study proved that the removal of both arsenic species below the value recommended by WHO can be achieved. Elution of As(III) and As(V) from the composite can be done by using small amounts of 0.01M NaOH solution resulting in preconcentration of arsenic species and possible multiple usage of composite.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Environmental Technology",
title = "Investigation of mechanism and critical parameters for removal of arsenic from water using Zr-TiO2 composite",
volume = "38",
number = "17",
pages = "2233-2240",
doi = "10.1080/09593330.2016.1255664"
}

Anđelković, I., Amaizah, N. R. R., Marković, S. B., Stanković, D., Markovic, M., Kuzmanović, D.,& Roglić, G.. (2017). Investigation of mechanism and critical parameters for removal of arsenic from water using Zr-TiO2 composite. in Environmental Technology
Taylor & Francis Ltd, Abingdon., 38(17), 2233-2240.
https://doi.org/10.1080/09593330.2016.1255664

Anđelković I, Amaizah NRR, Marković SB, Stanković D, Markovic M, Kuzmanović D, Roglić G. Investigation of mechanism and critical parameters for removal of arsenic from water using Zr-TiO2 composite. in Environmental Technology. 2017;38(17):2233-2240.
doi:10.1080/09593330.2016.1255664 .

Anđelković, Ivan, Amaizah, N. R. R., Marković, Sanja B., Stanković, Dalibor, Markovic, M., Kuzmanović, Darko, Roglić, Goran, "Investigation of mechanism and critical parameters for removal of arsenic from water using Zr-TiO2 composite" in Environmental Technology, 38, no. 17 (2017):2233-2240,
https://doi.org/10.1080/09593330.2016.1255664 . .

TY  - JOUR
AU  - Petković, Branka B.
AU  - Kuzmanović, Darko
AU  - Dimitrijević, Teodora
AU  - Krstic, M. P.
AU  - Stanković, Dalibor
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2465
AB  - A simple and fast method for determination of two phenothiazine drugs, chlorpromazine (CPZ) and thioridazine (TDZ), at the boron-doped diamond electrode (BDDE) was proposed. Oxidation peaks on potentials higher than 1 V were used for quantitation of investigated phenothiazines due to better selectivity over common interfering compounds in urine. Differential pulse voltammetry was applied for trace determination of CPZ and TDZ, in Britton-Robinson buffer solution at optimal pH. Under optimized DPV conditions a linear analytical curve was obtained from 1.0x10(-7) to 4.0x10(-5) M with a detection limit of 0.3x10(-7) M (for CPZ) and in the concentration range of 2x10(-7) M to 4.0x10(-5) M, with a detection limit of 1.2x10(-7)M (for TDZ). The applicability of the method was proved by determination of CPZ and TDZ by proposed procedures in spiked urine samples. The electrochemical behavior of those two important tranquilizers in different solvents was described, exploring the possibility of simultaneous determination.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Novel Strategy for Electroanalytical Detection of Antipsychotic Drugs Chlorpromazine and Thioridazine; Possibilities for Simultaneous Determination
VL  - 12
IS  - 5
SP  - 3709
EP  - 3720
DO  - 10.20964/2017.05.34
ER  - 

@article{
author = "Petković, Branka B. and Kuzmanović, Darko and Dimitrijević, Teodora and Krstic, M. P. and Stanković, Dalibor",
year = "2017",
abstract = "A simple and fast method for determination of two phenothiazine drugs, chlorpromazine (CPZ) and thioridazine (TDZ), at the boron-doped diamond electrode (BDDE) was proposed. Oxidation peaks on potentials higher than 1 V were used for quantitation of investigated phenothiazines due to better selectivity over common interfering compounds in urine. Differential pulse voltammetry was applied for trace determination of CPZ and TDZ, in Britton-Robinson buffer solution at optimal pH. Under optimized DPV conditions a linear analytical curve was obtained from 1.0x10(-7) to 4.0x10(-5) M with a detection limit of 0.3x10(-7) M (for CPZ) and in the concentration range of 2x10(-7) M to 4.0x10(-5) M, with a detection limit of 1.2x10(-7)M (for TDZ). The applicability of the method was proved by determination of CPZ and TDZ by proposed procedures in spiked urine samples. The electrochemical behavior of those two important tranquilizers in different solvents was described, exploring the possibility of simultaneous determination.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Novel Strategy for Electroanalytical Detection of Antipsychotic Drugs Chlorpromazine and Thioridazine; Possibilities for Simultaneous Determination",
volume = "12",
number = "5",
pages = "3709-3720",
doi = "10.20964/2017.05.34"
}

Petković, B. B., Kuzmanović, D., Dimitrijević, T., Krstic, M. P.,& Stanković, D.. (2017). Novel Strategy for Electroanalytical Detection of Antipsychotic Drugs Chlorpromazine and Thioridazine; Possibilities for Simultaneous Determination. in International Journal of Electrochemical Science
Esg, Belgrade., 12(5), 3709-3720.
https://doi.org/10.20964/2017.05.34

Petković BB, Kuzmanović D, Dimitrijević T, Krstic MP, Stanković D. Novel Strategy for Electroanalytical Detection of Antipsychotic Drugs Chlorpromazine and Thioridazine; Possibilities for Simultaneous Determination. in International Journal of Electrochemical Science. 2017;12(5):3709-3720.
doi:10.20964/2017.05.34 .

Petković, Branka B., Kuzmanović, Darko, Dimitrijević, Teodora, Krstic, M. P., Stanković, Dalibor, "Novel Strategy for Electroanalytical Detection of Antipsychotic Drugs Chlorpromazine and Thioridazine; Possibilities for Simultaneous Determination" in International Journal of Electrochemical Science, 12, no. 5 (2017):3709-3720,
https://doi.org/10.20964/2017.05.34 . .

TY  - CONF
AU  - Dimitrijević, Teodora
AU  - Kuzmanović, Darko
AU  - Roglić, Goran
AU  - Manojlović, Dragan D.
AU  - Stanković, Dalibor
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2812
PB  - Novi Sad : Alfagraf
C3  - Book of abstracts / 23rd Young Investigators' Seminar on Analytical Chemistry, June 28th-July 1st 2016, Novi Sad, Serbia
T1  - Voltammetric determination of piperidine type drugs at boron-doped diamond electrode
SP  - 10
EP  - 10
UR  - https://hdl.handle.net/21.15107/rcub_cherry_2812
ER  - 

@conference{
author = "Dimitrijević, Teodora and Kuzmanović, Darko and Roglić, Goran and Manojlović, Dragan D. and Stanković, Dalibor",
year = "2016",
publisher = "Novi Sad : Alfagraf",
journal = "Book of abstracts / 23rd Young Investigators' Seminar on Analytical Chemistry, June 28th-July 1st 2016, Novi Sad, Serbia",
title = "Voltammetric determination of piperidine type drugs at boron-doped diamond electrode",
pages = "10-10",
url = "https://hdl.handle.net/21.15107/rcub_cherry_2812"
}

Dimitrijević, T., Kuzmanović, D., Roglić, G., Manojlović, D. D.,& Stanković, D.. (2016). Voltammetric determination of piperidine type drugs at boron-doped diamond electrode. in Book of abstracts / 23rd Young Investigators' Seminar on Analytical Chemistry, June 28th-July 1st 2016, Novi Sad, Serbia
Novi Sad : Alfagraf., 10-10.
https://hdl.handle.net/21.15107/rcub_cherry_2812

Dimitrijević T, Kuzmanović D, Roglić G, Manojlović DD, Stanković D. Voltammetric determination of piperidine type drugs at boron-doped diamond electrode. in Book of abstracts / 23rd Young Investigators' Seminar on Analytical Chemistry, June 28th-July 1st 2016, Novi Sad, Serbia. 2016;:10-10.
https://hdl.handle.net/21.15107/rcub_cherry_2812 .

Dimitrijević, Teodora, Kuzmanović, Darko, Roglić, Goran, Manojlović, Dragan D., Stanković, Dalibor, "Voltammetric determination of piperidine type drugs at boron-doped diamond electrode" in Book of abstracts / 23rd Young Investigators' Seminar on Analytical Chemistry, June 28th-July 1st 2016, Novi Sad, Serbia (2016):10-10,
https://hdl.handle.net/21.15107/rcub_cherry_2812 .

TY  - JOUR
AU  - Kuzmanović, Darko
AU  - Khan, Muslim
AU  - Mehmeti, Eda
AU  - Nazir, Ruclia
AU  - Amaizah, Naser Ramdan R.
AU  - Stanković, Dalibor
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3437
AB  - Pyridoxine (vitamin B-6, VB6) was detected in pharmaceutical preparation and human urine samples by employing differential pulse voltammetry (DPV) at unmodified boron doped electrode. In Britton-Robinson buffer solution (BRBS) at pH 6, VB6 provides well defined oxidation peak at around +1.05 V vs. Ag/AgCl (3 M KCl). The influence of most of the interferents present in real samples, supporting electrolyte and DPV parameters was investigated. A VB6 sensor with and linear range from 7 to 47 and a detection limit of 3.76 was obtain after optimization. Repeatability of the proposed procedure calculated after 7 measurements of 9 and 30 mu M of VB6 was 3.6 and 2.4%, respectively. Proposed methodology was successfully applied for the determination of VB6 in real samples, and from obtained results, it can be concluded that proposed analytical procedure can be an inexpensive alternative to the widely used separation methods. Prime Novelty statement: This work presents the quantification of vitamin B-6, using differential pulse voltammetry, with boron-doped diamond electrode. BDD electrode is, up to date, one of the best electrode materials, with extremely low background current and negligible passivation. The aim of this study was to develop method for vitamin B-6 determination in various matrices, as can be seen from the results, the obtained procedure shows good recovery values in tested samples and could be a satisfactory replacement to the separation methods and modified electrodes. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Diamond and Related Materials
T1  - Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode
VL  - 64
SP  - 184
EP  - 189
DO  - 10.1016/j.diamond.2016.02.018
ER  - 

@article{
author = "Kuzmanović, Darko and Khan, Muslim and Mehmeti, Eda and Nazir, Ruclia and Amaizah, Naser Ramdan R. and Stanković, Dalibor",
year = "2016",
abstract = "Pyridoxine (vitamin B-6, VB6) was detected in pharmaceutical preparation and human urine samples by employing differential pulse voltammetry (DPV) at unmodified boron doped electrode. In Britton-Robinson buffer solution (BRBS) at pH 6, VB6 provides well defined oxidation peak at around +1.05 V vs. Ag/AgCl (3 M KCl). The influence of most of the interferents present in real samples, supporting electrolyte and DPV parameters was investigated. A VB6 sensor with and linear range from 7 to 47 and a detection limit of 3.76 was obtain after optimization. Repeatability of the proposed procedure calculated after 7 measurements of 9 and 30 mu M of VB6 was 3.6 and 2.4%, respectively. Proposed methodology was successfully applied for the determination of VB6 in real samples, and from obtained results, it can be concluded that proposed analytical procedure can be an inexpensive alternative to the widely used separation methods. Prime Novelty statement: This work presents the quantification of vitamin B-6, using differential pulse voltammetry, with boron-doped diamond electrode. BDD electrode is, up to date, one of the best electrode materials, with extremely low background current and negligible passivation. The aim of this study was to develop method for vitamin B-6 determination in various matrices, as can be seen from the results, the obtained procedure shows good recovery values in tested samples and could be a satisfactory replacement to the separation methods and modified electrodes. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Diamond and Related Materials",
title = "Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode",
volume = "64",
pages = "184-189",
doi = "10.1016/j.diamond.2016.02.018"
}

Kuzmanović, D., Khan, M., Mehmeti, E., Nazir, R., Amaizah, N. R. R.,& Stanković, D.. (2016). Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode. in Diamond and Related Materials
Elsevier Science Sa, Lausanne., 64, 184-189.
https://doi.org/10.1016/j.diamond.2016.02.018

Kuzmanović D, Khan M, Mehmeti E, Nazir R, Amaizah NRR, Stanković D. Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode. in Diamond and Related Materials. 2016;64:184-189.
doi:10.1016/j.diamond.2016.02.018 .

Kuzmanović, Darko, Khan, Muslim, Mehmeti, Eda, Nazir, Ruclia, Amaizah, Naser Ramdan R., Stanković, Dalibor, "Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode" in Diamond and Related Materials, 64 (2016):184-189,
https://doi.org/10.1016/j.diamond.2016.02.018 . .

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Kuzmanović, Darko
AU  - Manojlović, Dragan D.
AU  - Kalcher, Kurt
AU  - Roglić, Goran
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2258
AB  - In this paper electrochemical behavior and sensitive determination of vitamin B12 was studied by using boron doped diamond (BDD) electrode. Cyclic voltammetry and square wave voltammetry were used to investigate the performance of BDD electrode for this purpose. The calibration curve, constructed by plotting oxidation peak current against concentration, obtained in Britton-Robinson buffer solution at pH 2.0 was linear over the wide concentration range of 2-35 mu M with detection limit of 0.7 mu M. Influence of most common interferences compounds was investigated and proposed procedure was successfully applied for quantification of vitamin B12 in real samples, with satisfactory recovery (98-105%). (C) 2016 The Electrochemical Society. All rights reserved.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Electroanalytical Approach for Vitamin B-12 Quantification Based on Its Oxidation at Boron Doped Diamond Electrode
VL  - 163
IS  - 7
DO  - 10.1149/2.1041607jes
ER  - 

@article{
author = "Stanković, Dalibor and Kuzmanović, Darko and Manojlović, Dragan D. and Kalcher, Kurt and Roglić, Goran",
year = "2016",
abstract = "In this paper electrochemical behavior and sensitive determination of vitamin B12 was studied by using boron doped diamond (BDD) electrode. Cyclic voltammetry and square wave voltammetry were used to investigate the performance of BDD electrode for this purpose. The calibration curve, constructed by plotting oxidation peak current against concentration, obtained in Britton-Robinson buffer solution at pH 2.0 was linear over the wide concentration range of 2-35 mu M with detection limit of 0.7 mu M. Influence of most common interferences compounds was investigated and proposed procedure was successfully applied for quantification of vitamin B12 in real samples, with satisfactory recovery (98-105%). (C) 2016 The Electrochemical Society. All rights reserved.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Electroanalytical Approach for Vitamin B-12 Quantification Based on Its Oxidation at Boron Doped Diamond Electrode",
volume = "163",
number = "7",
doi = "10.1149/2.1041607jes"
}

Stanković, D., Kuzmanović, D., Manojlović, D. D., Kalcher, K.,& Roglić, G.. (2016). Electroanalytical Approach for Vitamin B-12 Quantification Based on Its Oxidation at Boron Doped Diamond Electrode. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 163(7).
https://doi.org/10.1149/2.1041607jes

Stanković D, Kuzmanović D, Manojlović DD, Kalcher K, Roglić G. Electroanalytical Approach for Vitamin B-12 Quantification Based on Its Oxidation at Boron Doped Diamond Electrode. in Journal of the Electrochemical Society. 2016;163(7).
doi:10.1149/2.1041607jes .

Stanković, Dalibor, Kuzmanović, Darko, Manojlović, Dragan D., Kalcher, Kurt, Roglić, Goran, "Electroanalytical Approach for Vitamin B-12 Quantification Based on Its Oxidation at Boron Doped Diamond Electrode" in Journal of the Electrochemical Society, 163, no. 7 (2016),
https://doi.org/10.1149/2.1041607jes . .

TY  - JOUR
AU  - Kuzmanović, Darko
AU  - Khan, Muslim
AU  - Mehmeti, Eda
AU  - Nazir, Ruclia
AU  - Amaizah, Naser Ramdan R.
AU  - Stanković, Dalibor
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1922
AB  - Pyridoxine (vitamin B-6, VB6) was detected in pharmaceutical preparation and human urine samples by employing differential pulse voltammetry (DPV) at unmodified boron doped electrode. In Britton-Robinson buffer solution (BRBS) at pH 6, VB6 provides well defined oxidation peak at around +1.05 V vs. Ag/AgCl (3 M KCl). The influence of most of the interferents present in real samples, supporting electrolyte and DPV parameters was investigated. A VB6 sensor with and linear range from 7 to 47 and a detection limit of 3.76 was obtain after optimization. Repeatability of the proposed procedure calculated after 7 measurements of 9 and 30 mu M of VB6 was 3.6 and 2.4%, respectively. Proposed methodology was successfully applied for the determination of VB6 in real samples, and from obtained results, it can be concluded that proposed analytical procedure can be an inexpensive alternative to the widely used separation methods. Prime Novelty statement: This work presents the quantification of vitamin B-6, using differential pulse voltammetry, with boron-doped diamond electrode. BDD electrode is, up to date, one of the best electrode materials, with extremely low background current and negligible passivation. The aim of this study was to develop method for vitamin B-6 determination in various matrices, as can be seen from the results, the obtained procedure shows good recovery values in tested samples and could be a satisfactory replacement to the separation methods and modified electrodes. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Diamond and Related Materials
T1  - Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode
VL  - 64
SP  - 184
EP  - 189
DO  - 10.1016/j.diamond.2016.02.018
ER  - 

@article{
author = "Kuzmanović, Darko and Khan, Muslim and Mehmeti, Eda and Nazir, Ruclia and Amaizah, Naser Ramdan R. and Stanković, Dalibor",
year = "2016",
abstract = "Pyridoxine (vitamin B-6, VB6) was detected in pharmaceutical preparation and human urine samples by employing differential pulse voltammetry (DPV) at unmodified boron doped electrode. In Britton-Robinson buffer solution (BRBS) at pH 6, VB6 provides well defined oxidation peak at around +1.05 V vs. Ag/AgCl (3 M KCl). The influence of most of the interferents present in real samples, supporting electrolyte and DPV parameters was investigated. A VB6 sensor with and linear range from 7 to 47 and a detection limit of 3.76 was obtain after optimization. Repeatability of the proposed procedure calculated after 7 measurements of 9 and 30 mu M of VB6 was 3.6 and 2.4%, respectively. Proposed methodology was successfully applied for the determination of VB6 in real samples, and from obtained results, it can be concluded that proposed analytical procedure can be an inexpensive alternative to the widely used separation methods. Prime Novelty statement: This work presents the quantification of vitamin B-6, using differential pulse voltammetry, with boron-doped diamond electrode. BDD electrode is, up to date, one of the best electrode materials, with extremely low background current and negligible passivation. The aim of this study was to develop method for vitamin B-6 determination in various matrices, as can be seen from the results, the obtained procedure shows good recovery values in tested samples and could be a satisfactory replacement to the separation methods and modified electrodes. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Diamond and Related Materials",
title = "Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode",
volume = "64",
pages = "184-189",
doi = "10.1016/j.diamond.2016.02.018"
}

Kuzmanović, D., Khan, M., Mehmeti, E., Nazir, R., Amaizah, N. R. R.,& Stanković, D.. (2016). Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode. in Diamond and Related Materials
Elsevier Science Sa, Lausanne., 64, 184-189.
https://doi.org/10.1016/j.diamond.2016.02.018

Kuzmanović D, Khan M, Mehmeti E, Nazir R, Amaizah NRR, Stanković D. Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode. in Diamond and Related Materials. 2016;64:184-189.
doi:10.1016/j.diamond.2016.02.018 .

Kuzmanović, Darko, Khan, Muslim, Mehmeti, Eda, Nazir, Ruclia, Amaizah, Naser Ramdan R., Stanković, Dalibor, "Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode" in Diamond and Related Materials, 64 (2016):184-189,
https://doi.org/10.1016/j.diamond.2016.02.018 . .

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Kuzmanović, Darko
AU  - Mehmeti, Eda
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1936
AB  - In this paper, we present electrochemical behavior and determination of riboflavin in pharmaceutical tablets by square wave voltammetry using unmodified boron-doped diamond electrode. In Britton-Robinson buffer solution at pH 2, by employing cyclic voltammetry it is demonstrated that riboflavin undergoes a diffusion-controlled quasi-reversible electron transfer reaction. The experimental parameters, such as pH of the supporting electrolyte, square wave voltammetry parameters, influence of most common interferences, were examined. Under optimized experimental conditions in Britton-Robinson buffer solution at pH 2, linear calibration curves were obtained in the wide range from 0.02 to 35 A mu M, with the capability of detection of 0.0037 A mu M. Repeatability of ten measurements was calculated at four concentrations from linear range and all values were  lt  1.8 %. Proposed method was successfully applied for the determination of the total vitamin content in pharmaceutical preparations and urine samples. The developed approach could be beneficial for the quantification of vitamin in drugs using boron-doped diamond electrode as up-to-date electrochemical sensor and could represent inexpensive analytical alternative to separation methods.
PB  - Springer Wien, Wien
T2  - Monatshefte Fur Chemie
T1  - Sensitive and selective determination of riboflavin (vitamin B2) based on boron-doped diamond electrode
VL  - 147
IS  - 6
SP  - 995
EP  - 1000
DO  - 10.1007/s00706-016-1665-2
ER  - 

@article{
author = "Stanković, Dalibor and Kuzmanović, Darko and Mehmeti, Eda and Kalcher, Kurt",
year = "2016",
abstract = "In this paper, we present electrochemical behavior and determination of riboflavin in pharmaceutical tablets by square wave voltammetry using unmodified boron-doped diamond electrode. In Britton-Robinson buffer solution at pH 2, by employing cyclic voltammetry it is demonstrated that riboflavin undergoes a diffusion-controlled quasi-reversible electron transfer reaction. The experimental parameters, such as pH of the supporting electrolyte, square wave voltammetry parameters, influence of most common interferences, were examined. Under optimized experimental conditions in Britton-Robinson buffer solution at pH 2, linear calibration curves were obtained in the wide range from 0.02 to 35 A mu M, with the capability of detection of 0.0037 A mu M. Repeatability of ten measurements was calculated at four concentrations from linear range and all values were  lt  1.8 %. Proposed method was successfully applied for the determination of the total vitamin content in pharmaceutical preparations and urine samples. The developed approach could be beneficial for the quantification of vitamin in drugs using boron-doped diamond electrode as up-to-date electrochemical sensor and could represent inexpensive analytical alternative to separation methods.",
publisher = "Springer Wien, Wien",
journal = "Monatshefte Fur Chemie",
title = "Sensitive and selective determination of riboflavin (vitamin B2) based on boron-doped diamond electrode",
volume = "147",
number = "6",
pages = "995-1000",
doi = "10.1007/s00706-016-1665-2"
}

Stanković, D., Kuzmanović, D., Mehmeti, E.,& Kalcher, K.. (2016). Sensitive and selective determination of riboflavin (vitamin B2) based on boron-doped diamond electrode. in Monatshefte Fur Chemie
Springer Wien, Wien., 147(6), 995-1000.
https://doi.org/10.1007/s00706-016-1665-2

Stanković D, Kuzmanović D, Mehmeti E, Kalcher K. Sensitive and selective determination of riboflavin (vitamin B2) based on boron-doped diamond electrode. in Monatshefte Fur Chemie. 2016;147(6):995-1000.
doi:10.1007/s00706-016-1665-2 .

Stanković, Dalibor, Kuzmanović, Darko, Mehmeti, Eda, Kalcher, Kurt, "Sensitive and selective determination of riboflavin (vitamin B2) based on boron-doped diamond electrode" in Monatshefte Fur Chemie, 147, no. 6 (2016):995-1000,
https://doi.org/10.1007/s00706-016-1665-2 . .

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Samphao, Anchalee
AU  - Kuzmanović, Darko
AU  - Kalcher, Kurt
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1725
AB  - This paper presents, for the first time, electrochemical behavior of diterpene lactone andrographolide and its voltammetric determination using differential pulse voltammetry (DPV) at boron-doped diamond electrode, in human urine and oil extract from Andrographis paniculata seeds. Andrographolide, due to its chemical structure, provides well defined peak at +1.55 V vs. Ag/AgCl electrode (3 M) in Britton-Robinson buffer solution pH 12. The proposed method, under optimum experimental parameters displays excellent selectivity towards andrographolide in the presence of some interference, as ascorbic acid, uric acid and dopamine, with detection limit of 0.75 mu M. Calibration curves were found to be linear in the range from 2 to 40 mu M, with two linear ranges, first from 2 to 10 mu M and second from 10 to 40 mu M with corresponding equations I (mu A) = (4.00 +/- 0.12) c (mu M) + (13.42 +/- 0.66) (R-2 = 0.9975) and I (mu A) = (0.87 +/- 0.05) c (mu M) + (46.33 +/- 1.53) (R-2 = 0.9767), respectively. Relative standard deviation of 7 measurements was 4% which verified excellent repeatability of proposed method and this method was successfully applied for the determination of andrographolide in human urine sample and extract from the A. paniculata seeds. The Prussian blue method was used for validation of the proposed elactroanalytical method. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Microchemical Journal
T1  - Novel electroanalyical method for the determination of andrographolide from Andrographis paniculata extract and urine samples
VL  - 122
SP  - 16
EP  - 19
DO  - 10.1016/j.microc.2015.04.005
ER  - 

@article{
author = "Stanković, Dalibor and Samphao, Anchalee and Kuzmanović, Darko and Kalcher, Kurt",
year = "2015",
abstract = "This paper presents, for the first time, electrochemical behavior of diterpene lactone andrographolide and its voltammetric determination using differential pulse voltammetry (DPV) at boron-doped diamond electrode, in human urine and oil extract from Andrographis paniculata seeds. Andrographolide, due to its chemical structure, provides well defined peak at +1.55 V vs. Ag/AgCl electrode (3 M) in Britton-Robinson buffer solution pH 12. The proposed method, under optimum experimental parameters displays excellent selectivity towards andrographolide in the presence of some interference, as ascorbic acid, uric acid and dopamine, with detection limit of 0.75 mu M. Calibration curves were found to be linear in the range from 2 to 40 mu M, with two linear ranges, first from 2 to 10 mu M and second from 10 to 40 mu M with corresponding equations I (mu A) = (4.00 +/- 0.12) c (mu M) + (13.42 +/- 0.66) (R-2 = 0.9975) and I (mu A) = (0.87 +/- 0.05) c (mu M) + (46.33 +/- 1.53) (R-2 = 0.9767), respectively. Relative standard deviation of 7 measurements was 4% which verified excellent repeatability of proposed method and this method was successfully applied for the determination of andrographolide in human urine sample and extract from the A. paniculata seeds. The Prussian blue method was used for validation of the proposed elactroanalytical method. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Microchemical Journal",
title = "Novel electroanalyical method for the determination of andrographolide from Andrographis paniculata extract and urine samples",
volume = "122",
pages = "16-19",
doi = "10.1016/j.microc.2015.04.005"
}

Stanković, D., Samphao, A., Kuzmanović, D.,& Kalcher, K.. (2015). Novel electroanalyical method for the determination of andrographolide from Andrographis paniculata extract and urine samples. in Microchemical Journal
Elsevier Science Bv, Amsterdam., 122, 16-19.
https://doi.org/10.1016/j.microc.2015.04.005

Stanković D, Samphao A, Kuzmanović D, Kalcher K. Novel electroanalyical method for the determination of andrographolide from Andrographis paniculata extract and urine samples. in Microchemical Journal. 2015;122:16-19.
doi:10.1016/j.microc.2015.04.005 .

Stanković, Dalibor, Samphao, Anchalee, Kuzmanović, Darko, Kalcher, Kurt, "Novel electroanalyical method for the determination of andrographolide from Andrographis paniculata extract and urine samples" in Microchemical Journal, 122 (2015):16-19,
https://doi.org/10.1016/j.microc.2015.04.005 . .

TY  - JOUR
AU  - Kuzmanović, Darko
AU  - Stanković, Dalibor
AU  - Manojlović, Dragan D.
AU  - Kalcher, Kurt
AU  - Roglić, Goran
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1973
AB  - In this study we proposed electrochemical behavior and determination of baicalein, main active flavonoid from Scutellaria baicalensis, using boron doped diamond electrode. In Britton-Robinson buffer solution, pH 2, baicalein provides two single oval shape oxidation peaks at +0.5 V/Ag-AgCl and a second one at +0.8 V/Ag-AgCl. For quantification of baicalein square wave voltammetry was used. Under optimized parameters calibration curve was linear over the range 1-95 mu M with detection limit of 0.26 mu M. After eight successful measurements repeatability was 3.7%. Proposed method was applied for determination of baicalein in real samples with excellent recovery. The influence of the most common interferences, biomolecules presented in urine was investigated. The developed approach could be beneficial in analysis of widely used flavonoid in biological samples. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Diamond and Related Materials
T1  - Baicalein - main active flavonoid from Scutellaria baicalensis - voltammetric sensing in human samples using boron doped diamond electrode
VL  - 58
SP  - 35
EP  - 39
DO  - 10.1016/j.diamond.2015.06.002
ER  - 

@article{
author = "Kuzmanović, Darko and Stanković, Dalibor and Manojlović, Dragan D. and Kalcher, Kurt and Roglić, Goran",
year = "2015",
abstract = "In this study we proposed electrochemical behavior and determination of baicalein, main active flavonoid from Scutellaria baicalensis, using boron doped diamond electrode. In Britton-Robinson buffer solution, pH 2, baicalein provides two single oval shape oxidation peaks at +0.5 V/Ag-AgCl and a second one at +0.8 V/Ag-AgCl. For quantification of baicalein square wave voltammetry was used. Under optimized parameters calibration curve was linear over the range 1-95 mu M with detection limit of 0.26 mu M. After eight successful measurements repeatability was 3.7%. Proposed method was applied for determination of baicalein in real samples with excellent recovery. The influence of the most common interferences, biomolecules presented in urine was investigated. The developed approach could be beneficial in analysis of widely used flavonoid in biological samples. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Diamond and Related Materials",
title = "Baicalein - main active flavonoid from Scutellaria baicalensis - voltammetric sensing in human samples using boron doped diamond electrode",
volume = "58",
pages = "35-39",
doi = "10.1016/j.diamond.2015.06.002"
}

Kuzmanović, D., Stanković, D., Manojlović, D. D., Kalcher, K.,& Roglić, G.. (2015). Baicalein - main active flavonoid from Scutellaria baicalensis - voltammetric sensing in human samples using boron doped diamond electrode. in Diamond and Related Materials
Elsevier Science Sa, Lausanne., 58, 35-39.
https://doi.org/10.1016/j.diamond.2015.06.002

Kuzmanović D, Stanković D, Manojlović DD, Kalcher K, Roglić G. Baicalein - main active flavonoid from Scutellaria baicalensis - voltammetric sensing in human samples using boron doped diamond electrode. in Diamond and Related Materials. 2015;58:35-39.
doi:10.1016/j.diamond.2015.06.002 .

Kuzmanović, Darko, Stanković, Dalibor, Manojlović, Dragan D., Kalcher, Kurt, Roglić, Goran, "Baicalein - main active flavonoid from Scutellaria baicalensis - voltammetric sensing in human samples using boron doped diamond electrode" in Diamond and Related Materials, 58 (2015):35-39,
https://doi.org/10.1016/j.diamond.2015.06.002 . .

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Dimitrijević, Teodora
AU  - Kuzmanović, Darko
AU  - Krstic, M. P.
AU  - Petković, Branka B.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2018
AB  - A simple and efficient procedure is described for electrochemical determination of trifluoperazine (TFP), a prominent compound in a large group of phenothiazine derivatives with potent physiological activity. This method is based on the electrochemical oxidation of TFP in Britton-Robinson buffer solution in pH 6 at a boron-doped diamond electrode. Cyclic voltammetry provided a four well defined oxidation peaks at + 0.65, + 0.83, + 1.06 and + 1.35 V (vs. Ag/AgCl/3 M KCl electrode). Differential pulse voltammetry was applied as a very sensitive analytical technique for the determination of micromolar amounts of TFP. Two oxidation peaks on higher potentials were chosen for quantification of TFP. Under optimized conditions, the analytical curves obtained were linear in the TFP concentration range of 1.0 to 37.0 mmol L-1, with a detection limit of 0.7 and 0.6 mmol L-1, respectively. The effect of interfering agents (common urinary compounds) appeared to be negligible confirming the favourable selectivity of the method. The proposed method was analytically applied by determination of trifluoperazine content in model human urine samples with good accuracy (recoveries varied from 97% to 104%). The developed approach could be beneficial in analysis of TFP in biological samples using a boron-doped diamond electrode as an up-to-date electrochemical sensor and could represent an inexpensive analytical alternative to separation methods.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Voltammetric determination of an antipsychotic agent trifluoperazine at a boron-doped diamond electrode in human urine
VL  - 5
IS  - 129
SP  - 107058
EP  - 107063
DO  - 10.1039/c5ra18783d
ER  - 

@article{
author = "Stanković, Dalibor and Dimitrijević, Teodora and Kuzmanović, Darko and Krstic, M. P. and Petković, Branka B.",
year = "2015",
abstract = "A simple and efficient procedure is described for electrochemical determination of trifluoperazine (TFP), a prominent compound in a large group of phenothiazine derivatives with potent physiological activity. This method is based on the electrochemical oxidation of TFP in Britton-Robinson buffer solution in pH 6 at a boron-doped diamond electrode. Cyclic voltammetry provided a four well defined oxidation peaks at + 0.65, + 0.83, + 1.06 and + 1.35 V (vs. Ag/AgCl/3 M KCl electrode). Differential pulse voltammetry was applied as a very sensitive analytical technique for the determination of micromolar amounts of TFP. Two oxidation peaks on higher potentials were chosen for quantification of TFP. Under optimized conditions, the analytical curves obtained were linear in the TFP concentration range of 1.0 to 37.0 mmol L-1, with a detection limit of 0.7 and 0.6 mmol L-1, respectively. The effect of interfering agents (common urinary compounds) appeared to be negligible confirming the favourable selectivity of the method. The proposed method was analytically applied by determination of trifluoperazine content in model human urine samples with good accuracy (recoveries varied from 97% to 104%). The developed approach could be beneficial in analysis of TFP in biological samples using a boron-doped diamond electrode as an up-to-date electrochemical sensor and could represent an inexpensive analytical alternative to separation methods.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Voltammetric determination of an antipsychotic agent trifluoperazine at a boron-doped diamond electrode in human urine",
volume = "5",
number = "129",
pages = "107058-107063",
doi = "10.1039/c5ra18783d"
}

Stanković, D., Dimitrijević, T., Kuzmanović, D., Krstic, M. P.,& Petković, B. B.. (2015). Voltammetric determination of an antipsychotic agent trifluoperazine at a boron-doped diamond electrode in human urine. in RSC Advances
Royal Soc Chemistry, Cambridge., 5(129), 107058-107063.
https://doi.org/10.1039/c5ra18783d

Stanković D, Dimitrijević T, Kuzmanović D, Krstic MP, Petković BB. Voltammetric determination of an antipsychotic agent trifluoperazine at a boron-doped diamond electrode in human urine. in RSC Advances. 2015;5(129):107058-107063.
doi:10.1039/c5ra18783d .

Stanković, Dalibor, Dimitrijević, Teodora, Kuzmanović, Darko, Krstic, M. P., Petković, Branka B., "Voltammetric determination of an antipsychotic agent trifluoperazine at a boron-doped diamond electrode in human urine" in RSC Advances, 5, no. 129 (2015):107058-107063,
https://doi.org/10.1039/c5ra18783d . .