Simultaneous Determination of Trace Zinc(II) and Cadmium(II) by Differential Pulse Anodic Stripping Voltammetry Using a MWCNTs-NaDBS Modified Stannum Film Electrode

A multiwalled carbon nanotubes–sodium dodecyl benzene sulfonate (MWCNTs–NaDBS) modified stannum film electrode was employed for the determination of cadmium(II) and zinc(II). The Sn/MWCNTs‐NaDBS film electrode was prepared by applying MWCNTs–NaDBS suspension to the surface of the GCE, while the Sn f...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2009-12, Vol.21 (23), p.2584-2589
Main Authors: Tian, Yun Qing, Li, Nian Bing, Luo, Hong Qun
Format: Article
Language:English
Subjects:
Cadmium
Calibration
Carbon
Electrodes
Multiwalled carbon nanotubes
Nanocomposites
Nanomaterials
Nanostructure
Optimization
Sodium dodecyl benzene sulfonate
Stannum
Tin
Zinc
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Summary:A multiwalled carbon nanotubes–sodium dodecyl benzene sulfonate (MWCNTs–NaDBS) modified stannum film electrode was employed for the determination of cadmium(II) and zinc(II). The Sn/MWCNTs‐NaDBS film electrode was prepared by applying MWCNTs–NaDBS suspension to the surface of the GCE, while the Sn film was plated in situ simultaneously with the target metal ions. Under optimal conditions, linear calibration curves were obtained in a range of 5.0 −100.0 μg L−1 with detection limits of 0.9 μg L−1 for zinc(II) and 0.8 μg L−1 for cadmium(II), respectively. This film electrode was successfully applied to the determination of Zn(II) and Cd(II) in tap water sample.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.200900249