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  - 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  - Škrivanj, Sandra B.
AU  - Stanković, Dalibor
AU  - Khan, Muslim
AU  - Nikolić, Aleksandar S.
AU  - Vulić, Predrag J.
AU  - Manojlović, Dragan D.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2151
AB  - This paper describes determination of trace level of copper ions on a new type of modified glassy carbon paste electrode based on addition of different amount of Co-ferrites in glassy carbon paste (CoFeMGCPE). Co-ferrite nanoparticles with different amount of cobalt were synthesized and characterized using scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD). A significant increase in current was achieved by introducing modifier in composition of the electrode in comparison with the bare glassy carbon paste electrode. Electrochemical parameters such as percentage of modifier, accumulation time and potential, pH and the optimized amount of cobalt in the ferrites were determined. The best voltammetric response was observed for Co0.5Fe0.5Fe2O4 when percentage of modifier was 3%. In acetate buffer solution, pH 4.5, thus prepared electrode displays selective detection toward copper ions, detection limit of 96 nM and it was successfully applied for the determination of copper ions in natural water samples, with satisfactory recovery.
PB  - Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran
T2  - Analytical and Bioanalytical Chemistry
T1  - Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode
VL  - 7
IS  - 2
SP  - 230
EP  - 241
UR  - https://hdl.handle.net/21.15107/rcub_cherry_2151
ER  - 

@article{
author = "Škrivanj, Sandra B. and Stanković, Dalibor and Khan, Muslim and Nikolić, Aleksandar S. and Vulić, Predrag J. and Manojlović, Dragan D.",
year = "2015",
abstract = "This paper describes determination of trace level of copper ions on a new type of modified glassy carbon paste electrode based on addition of different amount of Co-ferrites in glassy carbon paste (CoFeMGCPE). Co-ferrite nanoparticles with different amount of cobalt were synthesized and characterized using scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD). A significant increase in current was achieved by introducing modifier in composition of the electrode in comparison with the bare glassy carbon paste electrode. Electrochemical parameters such as percentage of modifier, accumulation time and potential, pH and the optimized amount of cobalt in the ferrites were determined. The best voltammetric response was observed for Co0.5Fe0.5Fe2O4 when percentage of modifier was 3%. In acetate buffer solution, pH 4.5, thus prepared electrode displays selective detection toward copper ions, detection limit of 96 nM and it was successfully applied for the determination of copper ions in natural water samples, with satisfactory recovery.",
publisher = "Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran",
journal = "Analytical and Bioanalytical Chemistry",
title = "Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode",
volume = "7",
number = "2",
pages = "230-241",
url = "https://hdl.handle.net/21.15107/rcub_cherry_2151"
}

Škrivanj, S. B., Stanković, D., Khan, M., Nikolić, A. S., Vulić, P. J.,& Manojlović, D. D.. (2015). Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode. in Analytical and Bioanalytical Chemistry
Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran., 7(2), 230-241.
https://hdl.handle.net/21.15107/rcub_cherry_2151

Škrivanj SB, Stanković D, Khan M, Nikolić AS, Vulić PJ, Manojlović DD. Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode. in Analytical and Bioanalytical Chemistry. 2015;7(2):230-241.
https://hdl.handle.net/21.15107/rcub_cherry_2151 .

Škrivanj, Sandra B., Stanković, Dalibor, Khan, Muslim, Nikolić, Aleksandar S., Vulić, Predrag J., Manojlović, Dragan D., "Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode" in Analytical and Bioanalytical Chemistry, 7, no. 2 (2015):230-241,
https://hdl.handle.net/21.15107/rcub_cherry_2151 .