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Rapid Electrochemical Method for the Determination of L-DOPA in Extract From the Seeds of Mucuna Prurita

Stanković, Dalibor; Samphao, Anchalee; Dojčinović, Biljana P.; Kalcher, Kurt

(Slovensko Kemijsko Drustvo, Ljubljana, 2016)

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Samphao, Anchalee
AU  - Dojčinović, Biljana P.
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2353
AB  - This work presents the electrochemical behavior of levodopa (L-DOPA), at boron-doped diamond (BDD) electrodes, using cycling voltammetry (CV), in Britton-Robinson (BR) buffer solution, and application of the proposed electrode for the determination of L-DOPA in extracts from the seeds of velvet bean (Mucuna prurita Hook or Mucuna pruriens (L.) DC.). L-DOPA provides a well-defined and single oval-shape oxidation peak at +0.8 V vs. Ag/AgCl (3 M KCl) reference electrode in BR buffer solution at pH 3.0. Experimental parameters, such as pH of supporting electrolyte and square wave voltammetry (SWV) operating parameters (frequency and modulation amplitude) were optimized. The effect of possible interferences was evaluated. Under optimal conditions the detection limit of the developed method was 0.8 mu M and the calibration curve for L-DOPA was linear in the range from 2 to 100 mu M. The proposed method was successfully applied to the determination of L-DOPA in an extract from the seeds of Mucuna prurita. The obtained result was in good agreement with obtained by photometry with 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS). The developed approach can be beneficial for the quantification of L-DOPA using a BDD electrode as up-to-date potential alternative sensor for electroanalytical applications.
PB  - Slovensko Kemijsko Drustvo, Ljubljana
T2  - Acta Chimica Slovenica
T1  - Rapid Electrochemical Method for the Determination of L-DOPA in Extract From the Seeds of Mucuna Prurita
VL  - 63
IS  - 2
SP  - 220
EP  - 226
DO  - 10.17344/acsi.2015.1541
ER  - 
@article{
author = "Stanković, Dalibor and Samphao, Anchalee and Dojčinović, Biljana P. and Kalcher, Kurt",
year = "2016",
abstract = "This work presents the electrochemical behavior of levodopa (L-DOPA), at boron-doped diamond (BDD) electrodes, using cycling voltammetry (CV), in Britton-Robinson (BR) buffer solution, and application of the proposed electrode for the determination of L-DOPA in extracts from the seeds of velvet bean (Mucuna prurita Hook or Mucuna pruriens (L.) DC.). L-DOPA provides a well-defined and single oval-shape oxidation peak at +0.8 V vs. Ag/AgCl (3 M KCl) reference electrode in BR buffer solution at pH 3.0. Experimental parameters, such as pH of supporting electrolyte and square wave voltammetry (SWV) operating parameters (frequency and modulation amplitude) were optimized. The effect of possible interferences was evaluated. Under optimal conditions the detection limit of the developed method was 0.8 mu M and the calibration curve for L-DOPA was linear in the range from 2 to 100 mu M. The proposed method was successfully applied to the determination of L-DOPA in an extract from the seeds of Mucuna prurita. The obtained result was in good agreement with obtained by photometry with 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS). The developed approach can be beneficial for the quantification of L-DOPA using a BDD electrode as up-to-date potential alternative sensor for electroanalytical applications.",
publisher = "Slovensko Kemijsko Drustvo, Ljubljana",
journal = "Acta Chimica Slovenica",
title = "Rapid Electrochemical Method for the Determination of L-DOPA in Extract From the Seeds of Mucuna Prurita",
volume = "63",
number = "2",
pages = "220-226",
doi = "10.17344/acsi.2015.1541"
}
Stanković, D., Samphao, A., Dojčinović, B. P.,& Kalcher, K.. (2016). Rapid Electrochemical Method for the Determination of L-DOPA in Extract From the Seeds of Mucuna Prurita. in Acta Chimica Slovenica
Slovensko Kemijsko Drustvo, Ljubljana., 63(2), 220-226.
https://doi.org/10.17344/acsi.2015.1541
Stanković D, Samphao A, Dojčinović BP, Kalcher K. Rapid Electrochemical Method for the Determination of L-DOPA in Extract From the Seeds of Mucuna Prurita. in Acta Chimica Slovenica. 2016;63(2):220-226.
doi:10.17344/acsi.2015.1541 .
Stanković, Dalibor, Samphao, Anchalee, Dojčinović, Biljana P., Kalcher, Kurt, "Rapid Electrochemical Method for the Determination of L-DOPA in Extract From the Seeds of Mucuna Prurita" in Acta Chimica Slovenica, 63, no. 2 (2016):220-226,
https://doi.org/10.17344/acsi.2015.1541 . .
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Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode

Kuzmanović, Darko; Khan, Muslim; Mehmeti, Eda; Nazir, Ruclia; Amaizah, Naser Ramdan R.; Stanković, Dalibor

(Elsevier Science Sa, Lausanne, 2016)

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 . .
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Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis

Stanković, Dalibor; Kalcherb, Kurt

(Elsevier Science Sa, Lausanne, 2016)

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Kalcherb, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2341
AB  - In this paper sensitive and selective quantification of the pesticide ziram exploiting its oxidation at a boron doped diamond (BDD) electrode is evaluated. The voltammetric behavior of the pesticide shows in acidic media three well-defined oxidation peaks. For quantification an analytical procedure based on flow injection analysis has been developed. Under optimized experimental conditions a linear dynamic range from 10 to 1000 nM was obtained. The limit of detection (LOD) was estimated to be 2.7 nM. Aftere valuation of effects from possible interferences, the proposed procedure was successfully applied to real samples. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Sensors and Actuators B: Chemical
T1  - Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis
VL  - 233
SP  - 144
EP  - 147
DO  - 10.1016/j.snb.2016.04.069
ER  - 
@article{
author = "Stanković, Dalibor and Kalcherb, Kurt",
year = "2016",
abstract = "In this paper sensitive and selective quantification of the pesticide ziram exploiting its oxidation at a boron doped diamond (BDD) electrode is evaluated. The voltammetric behavior of the pesticide shows in acidic media three well-defined oxidation peaks. For quantification an analytical procedure based on flow injection analysis has been developed. Under optimized experimental conditions a linear dynamic range from 10 to 1000 nM was obtained. The limit of detection (LOD) was estimated to be 2.7 nM. Aftere valuation of effects from possible interferences, the proposed procedure was successfully applied to real samples. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Sensors and Actuators B: Chemical",
title = "Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis",
volume = "233",
pages = "144-147",
doi = "10.1016/j.snb.2016.04.069"
}
Stanković, D.,& Kalcherb, K.. (2016). Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis. in Sensors and Actuators B: Chemical
Elsevier Science Sa, Lausanne., 233, 144-147.
https://doi.org/10.1016/j.snb.2016.04.069
Stanković D, Kalcherb K. Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis. in Sensors and Actuators B: Chemical. 2016;233:144-147.
doi:10.1016/j.snb.2016.04.069 .
Stanković, Dalibor, Kalcherb, Kurt, "Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis" in Sensors and Actuators B: Chemical, 233 (2016):144-147,
https://doi.org/10.1016/j.snb.2016.04.069 . .
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Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes

Stanković, Dalibor; Mehmeti, Eda; Zavašnik, Janez; Kalcher, Kurt

(Elsevier Science Sa, Lausanne, 2016)

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Mehmeti, Eda
AU  - Zavašnik, Janez
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2298
AB  - In this work, a comparative study between three different novel synthesized materials, cerium, titanium and selenium dioxide doped reduced graphene oxide, was done toward detection of nitrite in tap water. It was found that best response and analytical performance were achieved with acerium dioxide reduced graphene oxide modified glassy carbon electrode. The materials were synthesized and characterized with transmission electron microscopy (TEM), electrochemical impedance spectroscopy and UV-vis spectroscopy. The prepared electrode has a wide linear range from 0.7 to 385 mu M witha detection of 0.18 mu M using amperometric detection. Various parameters were optimized and the sensor was successfully applied for the nitrite ion quantification in tap water samples. Inclusion of different dopants in the graphene structure for novel materials to modify solid electrodes was found to enhance the catalytic effect toward nitrite detection. (C) 2016 Elsevier B.V. All Rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Sensors and Actuators B: Chemical
T1  - Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes
VL  - 236
SP  - 311
EP  - 317
DO  - 10.1016/j.snb.2016.06.018
ER  - 
@article{
author = "Stanković, Dalibor and Mehmeti, Eda and Zavašnik, Janez and Kalcher, Kurt",
year = "2016",
abstract = "In this work, a comparative study between three different novel synthesized materials, cerium, titanium and selenium dioxide doped reduced graphene oxide, was done toward detection of nitrite in tap water. It was found that best response and analytical performance were achieved with acerium dioxide reduced graphene oxide modified glassy carbon electrode. The materials were synthesized and characterized with transmission electron microscopy (TEM), electrochemical impedance spectroscopy and UV-vis spectroscopy. The prepared electrode has a wide linear range from 0.7 to 385 mu M witha detection of 0.18 mu M using amperometric detection. Various parameters were optimized and the sensor was successfully applied for the nitrite ion quantification in tap water samples. Inclusion of different dopants in the graphene structure for novel materials to modify solid electrodes was found to enhance the catalytic effect toward nitrite detection. (C) 2016 Elsevier B.V. All Rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Sensors and Actuators B: Chemical",
title = "Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes",
volume = "236",
pages = "311-317",
doi = "10.1016/j.snb.2016.06.018"
}
Stanković, D., Mehmeti, E., Zavašnik, J.,& Kalcher, K.. (2016). Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes. in Sensors and Actuators B: Chemical
Elsevier Science Sa, Lausanne., 236, 311-317.
https://doi.org/10.1016/j.snb.2016.06.018
Stanković D, Mehmeti E, Zavašnik J, Kalcher K. Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes. in Sensors and Actuators B: Chemical. 2016;236:311-317.
doi:10.1016/j.snb.2016.06.018 .
Stanković, Dalibor, Mehmeti, Eda, Zavašnik, Janez, Kalcher, Kurt, "Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes" in Sensors and Actuators B: Chemical, 236 (2016):311-317,
https://doi.org/10.1016/j.snb.2016.06.018 . .
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Determination of pyridoxine (vitamin B-6) in pharmaceuticals and urine samples using unmodified boron-doped diamond electrode

Kuzmanović, Darko; Khan, Muslim; Mehmeti, Eda; Nazir, Ruclia; Amaizah, Naser Ramdan R.; Stanković, Dalibor

(Elsevier Science Sa, Lausanne, 2016)

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 . .
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38
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Development of Sensitive Analytical Approach for the Quantification of alpha-Lipoic Acid Using Boron Doped Diamond Electrode

Stanković, Dalibor; Mehmeti, Eda; Kalcher, Kurt

(Japan Soc Analytical Chemistry, Tokyo, 2016)

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Mehmeti, Eda
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1944
AB  - A boron doped diamond (BDD) electrode was investigated for use as an electrochemical sensor for alpha-lipoic acid (LA) using amperometric and differential pulse voltammetric detection. LA displays a well expressed oxidation peak at +0.9 V vs. Ag/AgCL in solutions with a pH value of 3. It was found that signals obtained are linearly related to the concentration range from 0.3 to 105 mu M with detection limit of 0.088 mu M. Interferences by common compounds such as ascorbic acid, uric acid and dopamine were tested and the method was successfully applied to the determination of LA in human body fluids where it gave recoveries in the range from 95 to 97%.
PB  - Japan Soc Analytical Chemistry, Tokyo
T2  - Analytical Sciences
T1  - Development of Sensitive Analytical Approach for the Quantification of alpha-Lipoic Acid Using Boron Doped Diamond Electrode
VL  - 32
IS  - 8
SP  - 847
EP  - 851
DO  - 10.2116/analsci.32.847
ER  - 
@article{
author = "Stanković, Dalibor and Mehmeti, Eda and Kalcher, Kurt",
year = "2016",
abstract = "A boron doped diamond (BDD) electrode was investigated for use as an electrochemical sensor for alpha-lipoic acid (LA) using amperometric and differential pulse voltammetric detection. LA displays a well expressed oxidation peak at +0.9 V vs. Ag/AgCL in solutions with a pH value of 3. It was found that signals obtained are linearly related to the concentration range from 0.3 to 105 mu M with detection limit of 0.088 mu M. Interferences by common compounds such as ascorbic acid, uric acid and dopamine were tested and the method was successfully applied to the determination of LA in human body fluids where it gave recoveries in the range from 95 to 97%.",
publisher = "Japan Soc Analytical Chemistry, Tokyo",
journal = "Analytical Sciences",
title = "Development of Sensitive Analytical Approach for the Quantification of alpha-Lipoic Acid Using Boron Doped Diamond Electrode",
volume = "32",
number = "8",
pages = "847-851",
doi = "10.2116/analsci.32.847"
}
Stanković, D., Mehmeti, E.,& Kalcher, K.. (2016). Development of Sensitive Analytical Approach for the Quantification of alpha-Lipoic Acid Using Boron Doped Diamond Electrode. in Analytical Sciences
Japan Soc Analytical Chemistry, Tokyo., 32(8), 847-851.
https://doi.org/10.2116/analsci.32.847
Stanković D, Mehmeti E, Kalcher K. Development of Sensitive Analytical Approach for the Quantification of alpha-Lipoic Acid Using Boron Doped Diamond Electrode. in Analytical Sciences. 2016;32(8):847-851.
doi:10.2116/analsci.32.847 .
Stanković, Dalibor, Mehmeti, Eda, Kalcher, Kurt, "Development of Sensitive Analytical Approach for the Quantification of alpha-Lipoic Acid Using Boron Doped Diamond Electrode" in Analytical Sciences, 32, no. 8 (2016):847-851,
https://doi.org/10.2116/analsci.32.847 . .
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Electrochemical oxidation of phenanthrenequinone dioxime and its quantification using sensing at boron doped diamond electrode

Stanković, Dalibor; Mehmeti, Eda; Katcher, Kurt

(Elsevier Science Sa, Lausanne, 2016)

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Mehmeti, Eda
AU  - Katcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1931
AB  - Nowadays, there is small number of analytical procedures for the quantification of the phenanthrene and its derivatives, quinones and quinonedioximes. In recent years, different studies shows that potential application of these compounds and their complexes possess important role in many search areas, medicine, catalysis, sensors and bioorganic systems. In this paper, for the first time, we offer fast, sensitive, selective and reliable electroanalytical procedure for quantification of phenanthrenequinone dioxime (PQD) based on its oxidation. Also, its electrochemical behavior in water acidic media is given. Possible electrode mechanism based on these measurements was proposed. It was found that by employing differential pulse voltammetry (DPV) in Britton-Robinson buffer solution (BRBS) at pH 3.0 using boron-doped diamond (BDD) electrode calibration curve for PQD quantification was linear in the range of 0.3 to 7.0 mu M with detection limit of 0.22 mu M. Proposed method was successfully applied for the determination of PQD in blood samples with satisfactory recovery (96-102%). Proposed method can be beneficial in the chemistry of dioximes due to advantages of BDD electrode and sensitivity and selectivity of the electroanalytical procedures. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical oxidation of phenanthrenequinone dioxime and its quantification using sensing at boron doped diamond electrode
VL  - 770
SP  - 84
EP  - 89
DO  - 10.1016/j.jelechem.2016.03.041
ER  - 
@article{
author = "Stanković, Dalibor and Mehmeti, Eda and Katcher, Kurt",
year = "2016",
abstract = "Nowadays, there is small number of analytical procedures for the quantification of the phenanthrene and its derivatives, quinones and quinonedioximes. In recent years, different studies shows that potential application of these compounds and their complexes possess important role in many search areas, medicine, catalysis, sensors and bioorganic systems. In this paper, for the first time, we offer fast, sensitive, selective and reliable electroanalytical procedure for quantification of phenanthrenequinone dioxime (PQD) based on its oxidation. Also, its electrochemical behavior in water acidic media is given. Possible electrode mechanism based on these measurements was proposed. It was found that by employing differential pulse voltammetry (DPV) in Britton-Robinson buffer solution (BRBS) at pH 3.0 using boron-doped diamond (BDD) electrode calibration curve for PQD quantification was linear in the range of 0.3 to 7.0 mu M with detection limit of 0.22 mu M. Proposed method was successfully applied for the determination of PQD in blood samples with satisfactory recovery (96-102%). Proposed method can be beneficial in the chemistry of dioximes due to advantages of BDD electrode and sensitivity and selectivity of the electroanalytical procedures. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical oxidation of phenanthrenequinone dioxime and its quantification using sensing at boron doped diamond electrode",
volume = "770",
pages = "84-89",
doi = "10.1016/j.jelechem.2016.03.041"
}
Stanković, D., Mehmeti, E.,& Katcher, K.. (2016). Electrochemical oxidation of phenanthrenequinone dioxime and its quantification using sensing at boron doped diamond electrode. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 770, 84-89.
https://doi.org/10.1016/j.jelechem.2016.03.041
Stanković D, Mehmeti E, Katcher K. Electrochemical oxidation of phenanthrenequinone dioxime and its quantification using sensing at boron doped diamond electrode. in Journal of Electroanalytical Chemistry. 2016;770:84-89.
doi:10.1016/j.jelechem.2016.03.041 .
Stanković, Dalibor, Mehmeti, Eda, Katcher, Kurt, "Electrochemical oxidation of phenanthrenequinone dioxime and its quantification using sensing at boron doped diamond electrode" in Journal of Electroanalytical Chemistry, 770 (2016):84-89,
https://doi.org/10.1016/j.jelechem.2016.03.041 . .
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