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Multiwall Carbon Nanotubes-Modified Glassy Carbon Electrode for Square-Wave Stripping Voltammetric Determination of Aqueous Antimony (III) Ion

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Abstract:

A glassy carbon electrode (GCE) modified with multiwall carbon nanotubes (MWCNTs) for electrochemical square-wave stripping voltammetric (SWV) determination of antimony (III) was introduced. Various experimental parameters, such as the amounts of carbon nanotubes, the deposition potential and time, the electrolyte solution, etc, were thoroughly optimized and discussed. Under the optimum experimental conditions, the MWCNTs-modified GCE exhibited well linear behaviour in the antimony(III) concentration range from 0.04 to 0.26 mg/L (R=0.9983) with a detection limit of 3.20×10-4 mg/L (S/N=3) under a 360 s accumulation. The proposed electrode also exhibited encouraging properties for measurements of simulated water samples.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

1571-1575

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.1571

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Online since:

May 2012

Authors:

Yao Guang Guo, Wei Yan, Xiao Yi Lou, Dong Xue Xiao, Ping Zhai, Guang Chao Zhao, Wu Gang Zhang, Peng Huang, Zhao Hui Wang, Jian She Liu

Keywords:

Antimony (III), Glassy Carbon Electrode, Multi-Walled Carbon Nanotube (MWCNT), Square-Wave Stripping Voltammetry

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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