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Simultaneous Determination of Pb and Cd Traces in Water Samples by Anodic Stripping Voltammetry Using a Modified GC Electrode

Authorized Users Only
2011
Authors
Stanković, Dalibor
Manojlović, Dragan D.
Roglić, Goran
Kostić-Rajačić, Slađana
Anđelković, Ivan
Dojčinović, Biljana P.
Mutić, Jelena
Article (Published version)
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Abstract
The determination of Pb and Cd with a Nafion-modified glassy carbon electrode and Cu-DPABA complex (Cu-DPABA NA/GCE; DPABA is methyl 3,5-bis{bis-[(pyridin-2-yl)methyl]amino}methyl-benzoate) as an alternative electrode for anodic stripping voltammetry was described. Pb and Cd were accumulated in acetate buffer pH 4 at a potential of -1.4 V (vs. Ag/AgCl electrode) for 120 s followed by a DPASV scan from -1.2 to -0.2 V. Under optimum conditions the calibration curves were linear in the range of 4.8 x 10(-9)-5.0 x 10(-5) and 5.0 x 10(-9)-5 x 10(-5) molL(-1) for Pb and Cd, respectively. Detection limits were 1.8 x 10(-9) and 1.2 x 10(-9) mol L(-1) for Pb and Cd, respectively. Different parameters and conditions, such as membrane ingredients, accumulation time, potential and pH value were optimized. A study of interfering substances was also performed. A significant increase in current was achieved at the modified electrode in comparison with the bare glassy carbon electrode. The validation ...of the proposed method was made by Pb and Cd determination in the certified reference material Groundwater CRM 610 (BCR, Community Bureau of Reference, Brussels, Belgium). The electrode was successfully applied for determination of Pb and Cd in river water with a high content of organic contaminants without any pretreatment.

Keywords:
Modified electrode / Anodic stripping voltammetry / Lead / Cadmium / Nafion
Source:
Electroanalysis, 2011, 23, 8, 1928-1933
Publisher:
  • Wiley-Blackwell, Malden
Projects:
  • Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-172030)

DOI: 10.1002/elan.201100189

ISSN: 1040-0397

WoS: 000294037300022

Scopus: 2-s2.0-79961078136
[ Google Scholar ]
15
15
URI
http://cherry.chem.bg.ac.rs/handle/123456789/1190
Collections
  • Publikacije
  • Publikacije
Institution
Hemijski fakultet
TY  - JOUR
AU  - Stanković, Dalibor
AU  - Manojlović, Dragan D.
AU  - Roglić, Goran
AU  - Kostić-Rajačić, Slađana
AU  - Anđelković, Ivan
AU  - Dojčinović, Biljana P.
AU  - Mutić, Jelena
PY  - 2011
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/1190
AB  - The determination of Pb and Cd with a Nafion-modified glassy carbon electrode and Cu-DPABA complex (Cu-DPABA NA/GCE; DPABA is methyl 3,5-bis{bis-[(pyridin-2-yl)methyl]amino}methyl-benzoate) as an alternative electrode for anodic stripping voltammetry was described. Pb and Cd were accumulated in acetate buffer pH 4 at a potential of -1.4 V (vs. Ag/AgCl electrode) for 120 s followed by a DPASV scan from -1.2 to -0.2 V. Under optimum conditions the calibration curves were linear in the range of 4.8 x 10(-9)-5.0 x 10(-5) and 5.0 x 10(-9)-5 x 10(-5) molL(-1) for Pb and Cd, respectively. Detection limits were 1.8 x 10(-9) and 1.2 x 10(-9) mol L(-1) for Pb and Cd, respectively. Different parameters and conditions, such as membrane ingredients, accumulation time, potential and pH value were optimized. A study of interfering substances was also performed. A significant increase in current was achieved at the modified electrode in comparison with the bare glassy carbon electrode. The validation of the proposed method was made by Pb and Cd determination in the certified reference material Groundwater CRM 610 (BCR, Community Bureau of Reference, Brussels, Belgium). The electrode was successfully applied for determination of Pb and Cd in river water with a high content of organic contaminants without any pretreatment.
PB  - Wiley-Blackwell, Malden
T2  - Electroanalysis
T1  - Simultaneous Determination of Pb and Cd Traces in Water Samples by Anodic Stripping Voltammetry Using a Modified GC Electrode
VL  - 23
IS  - 8
SP  - 1928
EP  - 1933
DO  - 10.1002/elan.201100189
ER  - 
@article{
author = "Stanković, Dalibor and Manojlović, Dragan D. and Roglić, Goran and Kostić-Rajačić, Slađana and Anđelković, Ivan and Dojčinović, Biljana P. and Mutić, Jelena",
year = "2011",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/1190",
abstract = "The determination of Pb and Cd with a Nafion-modified glassy carbon electrode and Cu-DPABA complex (Cu-DPABA NA/GCE; DPABA is methyl 3,5-bis{bis-[(pyridin-2-yl)methyl]amino}methyl-benzoate) as an alternative electrode for anodic stripping voltammetry was described. Pb and Cd were accumulated in acetate buffer pH 4 at a potential of -1.4 V (vs. Ag/AgCl electrode) for 120 s followed by a DPASV scan from -1.2 to -0.2 V. Under optimum conditions the calibration curves were linear in the range of 4.8 x 10(-9)-5.0 x 10(-5) and 5.0 x 10(-9)-5 x 10(-5) molL(-1) for Pb and Cd, respectively. Detection limits were 1.8 x 10(-9) and 1.2 x 10(-9) mol L(-1) for Pb and Cd, respectively. Different parameters and conditions, such as membrane ingredients, accumulation time, potential and pH value were optimized. A study of interfering substances was also performed. A significant increase in current was achieved at the modified electrode in comparison with the bare glassy carbon electrode. The validation of the proposed method was made by Pb and Cd determination in the certified reference material Groundwater CRM 610 (BCR, Community Bureau of Reference, Brussels, Belgium). The electrode was successfully applied for determination of Pb and Cd in river water with a high content of organic contaminants without any pretreatment.",
publisher = "Wiley-Blackwell, Malden",
journal = "Electroanalysis",
title = "Simultaneous Determination of Pb and Cd Traces in Water Samples by Anodic Stripping Voltammetry Using a Modified GC Electrode",
volume = "23",
number = "8",
pages = "1928-1933",
doi = "10.1002/elan.201100189"
}
Stanković D, Manojlović DD, Roglić G, Kostić-Rajačić S, Anđelković I, Dojčinović BP, Mutić J. Simultaneous Determination of Pb and Cd Traces in Water Samples by Anodic Stripping Voltammetry Using a Modified GC Electrode. Electroanalysis. 2011;23(8):1928-1933
Stanković, D., Manojlović, D. D., Roglić, G., Kostić-Rajačić, S., Anđelković, I., Dojčinović, B. P.,& Mutić, J. (2011). Simultaneous Determination of Pb and Cd Traces in Water Samples by Anodic Stripping Voltammetry Using a Modified GC Electrode.
ElectroanalysisWiley-Blackwell, Malden., 23(8), 1928-1933.
https://doi.org/10.1002/elan.201100189
Stanković Dalibor, Manojlović Dragan D., Roglić Goran, Kostić-Rajačić Slađana, Anđelković Ivan, Dojčinović Biljana P., Mutić Jelena, "Simultaneous Determination of Pb and Cd Traces in Water Samples by Anodic Stripping Voltammetry Using a Modified GC Electrode" 23, no. 8 (2011):1928-1933,
https://doi.org/10.1002/elan.201100189 .

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