TY  - JOUR
AU  - Marinović, Vedrana
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Našić, G.
AU  - Stojanović, M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/364
AB  - The study of the electrochemical reduction on acetonitrile modified platinum electrode and determination of trinitrotoluene (TNT) in neutral solution by simple galvanostatic technique is presented here. The obtained potential-time responses on the applied constant cathodic current pulses showed two potential transitions before achieving the steady-states, referring to the multi-step reduction process of nitro groups in TNT molecule. The calibration curves of the dependence of the square root of the first transition time (τ 0.5) on the TNT concentration were linear in the ranges 4.4 – 303.8 μM and 0.09 – 4.40 μM for applied constant current of 0.1 mA. The detection limit was 0.09 μM. The method was tested in the river water. The results indicated the sensitivity of the galvanostatic method for TNT determination in the environmental samples. From the first transition on the E-t curves the characteristics important for the understanding the mechanism of the reduction process were obtained. It was found that four electrons are involved in the reduction process of the first nitro group, indicating that the reduction product in a neutral electrolyte is hydroxylamine.
Keywords:
PB  - ESG
T2  - International Journal of Electrochemical Science
T1  - The galvanostatic reduction on modified platinum electrode and determination of trinitrotoluene in neutral solution
SP  - 1986
EP  - 1998
VL  - 8
IS  - 2
UR  - https://hdl.handle.net/21.15107/rcub_dais_364
ER  - 

@article{
author = "Marinović, Vedrana and Marinović, Sanja and Jovanović, M. and Našić, G. and Stojanović, M.",
year = "2013",
abstract = "The study of the electrochemical reduction on acetonitrile modified platinum electrode and determination of trinitrotoluene (TNT) in neutral solution by simple galvanostatic technique is presented here. The obtained potential-time responses on the applied constant cathodic current pulses showed two potential transitions before achieving the steady-states, referring to the multi-step reduction process of nitro groups in TNT molecule. The calibration curves of the dependence of the square root of the first transition time (τ 0.5) on the TNT concentration were linear in the ranges 4.4 – 303.8 μM and 0.09 – 4.40 μM for applied constant current of 0.1 mA. The detection limit was 0.09 μM. The method was tested in the river water. The results indicated the sensitivity of the galvanostatic method for TNT determination in the environmental samples. From the first transition on the E-t curves the characteristics important for the understanding the mechanism of the reduction process were obtained. It was found that four electrons are involved in the reduction process of the first nitro group, indicating that the reduction product in a neutral electrolyte is hydroxylamine.
Keywords:",
publisher = "ESG",
journal = "International Journal of Electrochemical Science",
title = "The galvanostatic reduction on modified platinum electrode and determination of trinitrotoluene in neutral solution",
pages = "1986-1998",
volume = "8",
number = "2",
url = "https://hdl.handle.net/21.15107/rcub_dais_364"
}

Marinović, V., Marinović, S., Jovanović, M., Našić, G.,& Stojanović, M.. (2013). The galvanostatic reduction on modified platinum electrode and determination of trinitrotoluene in neutral solution. in International Journal of Electrochemical Science
ESG., 8(2), 1986-1998.
https://hdl.handle.net/21.15107/rcub_dais_364

Marinović V, Marinović S, Jovanović M, Našić G, Stojanović M. The galvanostatic reduction on modified platinum electrode and determination of trinitrotoluene in neutral solution. in International Journal of Electrochemical Science. 2013;8(2):1986-1998.
https://hdl.handle.net/21.15107/rcub_dais_364 .

Marinović, Vedrana, Marinović, Sanja, Jovanović, M., Našić, G., Stojanović, M., "The galvanostatic reduction on modified platinum electrode and determination of trinitrotoluene in neutral solution" in International Journal of Electrochemical Science, 8, no. 2 (2013):1986-1998,
https://hdl.handle.net/21.15107/rcub_dais_364 .

TY  - CHAP
AU  - Marinović, Vedrana M.
AU  - Marinović, Sanja
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/4845
AB  - Possibility of electrochemical determination of a nitroaromatic compounds was investigated by cyclic voltammetry and galvanostatic pulse technique on a platinum electrode in aqueous sodium chloride solutions (0.5M NaCl) with acetonitrile containing different concentrations of trinitrotoluene (TNT), as an example of nitroaromatic compound. Acetonitrile chemisorption on a platinum surface took place and when the supported electrolyte contained acetonitrile in concentration as low as 0.5vol% extend of it chemisorption achieved saturation and platinum surface became effectively modified. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4 - 638.4 μM and 0.11 - 4.40 μM for two different scan rates, 200 mV s-1 and 20 mV s-1, respectively. The detection limit was 0.11 μM. The accuracy of the method presented in this work was tested in river water and it was confirmed that TNT could be successfully detected by acetonitrile modified Pt electrode.
PB  - Nova Science Publishers, Inc.
T2  - Acetonitrile: Properties, Applications and Health Effects
T1  - Application of acetonitrile modified platinum electrode for electrochemical determination of nitroaromatic compounds
SP  - 89
EP  - 108
UR  - https://hdl.handle.net/21.15107/rcub_dais_4845
ER  - 

@inbook{
author = "Marinović, Vedrana M. and Marinović, Sanja",
year = "2012",
abstract = "Possibility of electrochemical determination of a nitroaromatic compounds was investigated by cyclic voltammetry and galvanostatic pulse technique on a platinum electrode in aqueous sodium chloride solutions (0.5M NaCl) with acetonitrile containing different concentrations of trinitrotoluene (TNT), as an example of nitroaromatic compound. Acetonitrile chemisorption on a platinum surface took place and when the supported electrolyte contained acetonitrile in concentration as low as 0.5vol% extend of it chemisorption achieved saturation and platinum surface became effectively modified. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4 - 638.4 μM and 0.11 - 4.40 μM for two different scan rates, 200 mV s-1 and 20 mV s-1, respectively. The detection limit was 0.11 μM. The accuracy of the method presented in this work was tested in river water and it was confirmed that TNT could be successfully detected by acetonitrile modified Pt electrode.",
publisher = "Nova Science Publishers, Inc.",
journal = "Acetonitrile: Properties, Applications and Health Effects",
booktitle = "Application of acetonitrile modified platinum electrode for electrochemical determination of nitroaromatic compounds",
pages = "89-108",
url = "https://hdl.handle.net/21.15107/rcub_dais_4845"
}

Marinović, V. M.,& Marinović, S.. (2012). Application of acetonitrile modified platinum electrode for electrochemical determination of nitroaromatic compounds. in Acetonitrile: Properties, Applications and Health Effects
Nova Science Publishers, Inc.., 89-108.
https://hdl.handle.net/21.15107/rcub_dais_4845

Marinović VM, Marinović S. Application of acetonitrile modified platinum electrode for electrochemical determination of nitroaromatic compounds. in Acetonitrile: Properties, Applications and Health Effects. 2012;:89-108.
https://hdl.handle.net/21.15107/rcub_dais_4845 .

Marinović, Vedrana M., Marinović, Sanja, "Application of acetonitrile modified platinum electrode for electrochemical determination of nitroaromatic compounds" in Acetonitrile: Properties, Applications and Health Effects (2012):89-108,
https://hdl.handle.net/21.15107/rcub_dais_4845 .

TY  - CONF
AU  - Štrbac, Svetlana
AU  - Marinović, Vedrana
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Jovanović, J.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/243
AB  - Poster presented at the 61st Annual Meeting of the International Society of Electrochemistry, Nice, France, September 26 – October 1, 2010
T1  - Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode
UR  - https://hdl.handle.net/21.15107/rcub_dais_243
ER  - 

@conference{
author = "Štrbac, Svetlana and Marinović, Vedrana and Marinović, Sanja and Jovanović, M. and Jovanović, J.",
year = "2010",
abstract = "Poster presented at the 61st Annual Meeting of the International Society of Electrochemistry, Nice, France, September 26 – October 1, 2010",
title = "Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode",
url = "https://hdl.handle.net/21.15107/rcub_dais_243"
}

Štrbac, S., Marinović, V., Marinović, S., Jovanović, M.,& Jovanović, J.. (2010). Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode. .
https://hdl.handle.net/21.15107/rcub_dais_243

Štrbac S, Marinović V, Marinović S, Jovanović M, Jovanović J. Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode. 2010;.
https://hdl.handle.net/21.15107/rcub_dais_243 .

Štrbac, Svetlana, Marinović, Vedrana, Marinović, Sanja, Jovanović, M., Jovanović, J., "Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode" (2010),
https://hdl.handle.net/21.15107/rcub_dais_243 .

TY  - CONF
AU  - Marinović, Vedrana
AU  - Marinović, Sanja
AU  - Jovanović, Mića
AU  - Jovanović, Jovan
AU  - Štrbac, Svetlana
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3509
AB  - Electrochemical reduction of trinitrololuene (TNT) based on the ready reduction of lheir electron-defficient nitro-groups was investigated using platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT.
PB  - Nice : International Society of Electrochemistry
C3  - The 61st Annual Meeting of the International Society of Electrochemistry: Electrochemistry from Biology to Physics September 26th - October 1st, 2010, Nice, France: Book of Abstracts
T1  - Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode
SP  - s10-P-047
UR  - https://hdl.handle.net/21.15107/rcub_dais_3509
ER  - 

@conference{
author = "Marinović, Vedrana and Marinović, Sanja and Jovanović, Mića and Jovanović, Jovan and Štrbac, Svetlana",
year = "2010",
abstract = "Electrochemical reduction of trinitrololuene (TNT) based on the ready reduction of lheir electron-defficient nitro-groups was investigated using platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT.",
publisher = "Nice : International Society of Electrochemistry",
journal = "The 61st Annual Meeting of the International Society of Electrochemistry: Electrochemistry from Biology to Physics September 26th - October 1st, 2010, Nice, France: Book of Abstracts",
title = "Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode",
pages = "s10-P-047",
url = "https://hdl.handle.net/21.15107/rcub_dais_3509"
}

Marinović, V., Marinović, S., Jovanović, M., Jovanović, J.,& Štrbac, S.. (2010). Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode. in The 61st Annual Meeting of the International Society of Electrochemistry: Electrochemistry from Biology to Physics September 26th - October 1st, 2010, Nice, France: Book of Abstracts
Nice : International Society of Electrochemistry., s10-P-047.
https://hdl.handle.net/21.15107/rcub_dais_3509

Marinović V, Marinović S, Jovanović M, Jovanović J, Štrbac S. Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode. in The 61st Annual Meeting of the International Society of Electrochemistry: Electrochemistry from Biology to Physics September 26th - October 1st, 2010, Nice, France: Book of Abstracts. 2010;:s10-P-047.
https://hdl.handle.net/21.15107/rcub_dais_3509 .

Marinović, Vedrana, Marinović, Sanja, Jovanović, Mića, Jovanović, Jovan, Štrbac, Svetlana, "Electrochemical Reduction of Trinitrotoluene on a Modified Platinum Electrode" in The 61st Annual Meeting of the International Society of Electrochemistry: Electrochemistry from Biology to Physics September 26th - October 1st, 2010, Nice, France: Book of Abstracts (2010):s10-P-047,
https://hdl.handle.net/21.15107/rcub_dais_3509 .

TY  - JOUR
AU  - Marinović, Vedrana
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Jovanović, J.
AU  - Štrbac, Svetlana
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3415
AB  - The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3 M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4-638.4 μM and 0.11-4.40 μM for two different scan rates, 200 mV s-1 and 20 mV s-1, respectively. The detection limit was 0.11 μM. Acetonitrile chemisorption on Pt surface took place and caused thus modified platinum electrode to exhibit an electrochemically stabile behaviour. Hence, a very high reproducibility over a prolonged time and voltammetric cycling was provided for using a Pt wire that is easy to handle as a suitable material for TNT sensing. Additionally, it was confirmed by testing the acetonitrile modified Pt wire for TNT detection in river water. © 2010 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile
SP  - 1
EP  - 7
VL  - 648
IS  - 1
DO  - 10.1016/j.jelechem.2010.07.008
UR  - https://hdl.handle.net/21.15107/rcub_dais_3415
ER  - 

@article{
author = "Marinović, Vedrana and Marinović, Sanja and Jovanović, M. and Jovanović, J. and Štrbac, Svetlana",
year = "2010",
abstract = "The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3 M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4-638.4 μM and 0.11-4.40 μM for two different scan rates, 200 mV s-1 and 20 mV s-1, respectively. The detection limit was 0.11 μM. Acetonitrile chemisorption on Pt surface took place and caused thus modified platinum electrode to exhibit an electrochemically stabile behaviour. Hence, a very high reproducibility over a prolonged time and voltammetric cycling was provided for using a Pt wire that is easy to handle as a suitable material for TNT sensing. Additionally, it was confirmed by testing the acetonitrile modified Pt wire for TNT detection in river water. © 2010 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile",
pages = "1-7",
volume = "648",
number = "1",
doi = "10.1016/j.jelechem.2010.07.008",
url = "https://hdl.handle.net/21.15107/rcub_dais_3415"
}

Marinović, V., Marinović, S., Jovanović, M., Jovanović, J.,& Štrbac, S.. (2010). The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile. in Journal of Electroanalytical Chemistry
Elsevier., 648(1), 1-7.
https://doi.org/10.1016/j.jelechem.2010.07.008
https://hdl.handle.net/21.15107/rcub_dais_3415

Marinović V, Marinović S, Jovanović M, Jovanović J, Štrbac S. The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile. in Journal of Electroanalytical Chemistry. 2010;648(1):1-7.
doi:10.1016/j.jelechem.2010.07.008
https://hdl.handle.net/21.15107/rcub_dais_3415 .

Marinović, Vedrana, Marinović, Sanja, Jovanović, M., Jovanović, J., Štrbac, Svetlana, "The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile" in Journal of Electroanalytical Chemistry, 648, no. 1 (2010):1-7,
https://doi.org/10.1016/j.jelechem.2010.07.008 .,
https://hdl.handle.net/21.15107/rcub_dais_3415 .