Simultaneous Determination of Cr(III) and Cr(VI) by Differential Pulse Voltammetry Using Modified Screen-Printed Carbon Electrodes in Array Mode

A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen‐printed carbon electrodes (SPCEs) has been proposed. Two different modified carbon working, a Ag/AgCl reference and a carbon counter screen‐printed electrodes have been connected in array mode for...

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Published inElectroanalysis (New York, N.Y.) Vol. 22; no. 24; pp. 2924 - 2930
Main Authors Calvo-Pérez, Ana, Domínguez-Renedo, Olga, Alonso-Lomillo, M. Asunción, Arcos-Martínez, M. Julia
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.12.2010
WILEY‐VCH Verlag
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Abstract A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen‐printed carbon electrodes (SPCEs) has been proposed. Two different modified carbon working, a Ag/AgCl reference and a carbon counter screen‐printed electrodes have been connected in array mode for the simultaneous determination of Cr(III) and Cr(VI). Mercury films or gold nanoparticles have been ground onto the SPCEs in order to improve their selectivity to each chromium species. The quantification of the peak currents observed at −1.25 V in Hg‐SPCE and −0.1 V in AuNPs‐SPCE were carried out. The method has been applied to the speciation of chromium in waste water from a tannery factory.
AbstractList A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen-printed carbon electrodes (SPCEs) has been proposed. Two different modified carbon working, a Ag/AgCl reference and a carbon counter screen-printed electrodes have been connected in array mode for the simultaneous determination of Cr(III) and Cr(VI). Mercury films or gold nanoparticles have been ground onto the SPCEs in order to improve their selectivity to each chromium species. The quantification of the peak currents observed at -1.25V in Hg-SPCE and -0.1V in AuNPs-SPCE were carried out. The method has been applied to the speciation of chromium in waste water from a tannery factory.
A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen‐printed carbon electrodes (SPCEs) has been proposed. Two different modified carbon working, a Ag/AgCl reference and a carbon counter screen‐printed electrodes have been connected in array mode for the simultaneous determination of Cr(III) and Cr(VI). Mercury films or gold nanoparticles have been ground onto the SPCEs in order to improve their selectivity to each chromium species. The quantification of the peak currents observed at −1.25 V in Hg‐SPCE and −0.1 V in AuNPs‐SPCE were carried out. The method has been applied to the speciation of chromium in waste water from a tannery factory.
Abstract A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen‐printed carbon electrodes (SPCEs) has been proposed. Two different modified carbon working, a Ag/AgCl reference and a carbon counter screen‐printed electrodes have been connected in array mode for the simultaneous determination of Cr(III) and Cr(VI). Mercury films or gold nanoparticles have been ground onto the SPCEs in order to improve their selectivity to each chromium species. The quantification of the peak currents observed at −1.25 V in Hg‐SPCE and −0.1 V in AuNPs‐SPCE were carried out. The method has been applied to the speciation of chromium in waste water from a tannery factory.
Author Arcos-Martínez, M. Julia
Calvo-Pérez, Ana
Alonso-Lomillo, M. Asunción
Domínguez-Renedo, Olga
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Snippet A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen‐printed carbon electrodes (SPCEs) has been proposed. Two...
Abstract A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen‐printed carbon electrodes (SPCEs) has been...
A new procedure for the speciation of chromium by means of differential pulse voltammetry using screen-printed carbon electrodes (SPCEs) has been proposed. Two...
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SubjectTerms Arrays
Carbon
Chromium
Chromium speciation
Differential pulse voltammetry
Electrodes
Gold nanoparticles
Manufacturing engineering
Mercury film
Nanoparticles
Screen-printed electrodes
Speciation
Statistical process control
Voltammetry
Title Simultaneous Determination of Cr(III) and Cr(VI) by Differential Pulse Voltammetry Using Modified Screen-Printed Carbon Electrodes in Array Mode
URI https://api.istex.fr/ark:/67375/WNG-PPJ8V5RT-B/fulltext.pdf
https://onlinelibrary.wiley.com/doi/abs/10.1002%2Felan.201000350
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https://search.proquest.com/docview/896183570
Volume 22
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