Construction of Modified Carbon Paste Electrode for Highly Sensitive Simultaneous Electrochemical Determination of Trace Amounts of Copper (II) and Cadmium (II)

A chemically modified electrode was constructed for rapid, simple, accurate, selective and highly sensitive simultaneous determination of Cu(II) and Cd(II) using square wave anodic stripping voltammetry. The electrode was prepared by incorporation of SiO2 nanoparticles, coated with a newly synthesiz...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2016-02, Vol.28 (2), p.296-303
Main Authors: Afkhami, Abbas, Soltani-Shahrivar, Morteza, Ghaedi, Hamed, Madrakian, Tayyebeh
Format: Article
Language:English
Subjects:
Anodic stripping
Cadmium bronzes
Carbon
Chemically modified electrode
Construction
Copper
Cu(II) and Cd(II) determination
Electrodes
Nanoparticles
Pastes
Simultaneous determination
Square wave anodic stripping voltammetry
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Summary:A chemically modified electrode was constructed for rapid, simple, accurate, selective and highly sensitive simultaneous determination of Cu(II) and Cd(II) using square wave anodic stripping voltammetry. The electrode was prepared by incorporation of SiO2 nanoparticles, coated with a newly synthesized Schiff base, in carbon paste electrode. The limit of detection was found to be 0.28 ng mL−1 and 0.54 ng mL−1 for Cu(II) and Cd(II), respectively. The proposed chemically modified electrode was used for the determination of copper and cadmium in several foodstuffs and water samples.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201500308