A stannum–bismuth composite film electrode for simultaneous determination of zinc(ii) and cadmium(ii) using differential pulse anodic stripping voltammetry

Literature Information

Publication Date 2011-12-06
DOI 10.1039/C1AN15753A
Impact Factor 4.616
Authors

Nian Bing Li, Wei Wei Zhu, Jun Hua Luo, Hong Qun Luo


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Abstract

The development and use of ‘green’ electrode materials is extremely attractive for the routine use of disposable metal sensors. Bismuth is an environmentally-friendly element and a bismuth film electrode was proposed as an alternative to mercury film electrodes. Compared with bismuth, stannum is a more ‘environmentally friendly’ material. The stannum–bismuth composite film electrode prepared by the in situelectrodeposition of stannum and bismuth on the glassy carbon substrate is reported for the first time. Compared with bismuth film and stannum film electrodes, the stannum–bismuth composite film electrode revealed better electroanalytical performance, and can be used as a possible alternative electrode for electrochemical stripping analysis of trace heavy metals.

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