Sub‐ppt Level Detection of Mercury(II) Based on Anodic Stripping Voltammetry with Prestripping Step at an In Situ Formed Bismuth Film Modified Glassy Carbon Electrode |
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| Authors: | Shao‐Hua Wu Zhao‐Yan Zheng Ji‐Fang Zhang Zi‐Wang Song Lei Fang Jian‐Jun Sun |
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| Affiliation: | Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P.?R. China tel/fax: +86?591?22866136 |
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| Abstract: | ![]()
Sensitive and selective detection of Hg2+ in solution is a challenging work. An anodic stripping voltammetry with prestripping step at an in situ formed bismuth film modified glassy carbon electrode was proposed for detection of mercury(II) in solution. This prestripping step was able to decrease the background and improve the signal‐to‐noise ratio and thus enhance the sensitivity. With this method, highly sensitive and selective detection of Hg2+ with a ppt‐level detection limit of 0.5 ng L?1 could be achieved. Moreover, this method provides low interference, rapid and extreme simple and convenience, and hold great promise for in situ Hg2+ determination. |
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| Keywords: | Anodic stripping voltammetry with prestripping step Bismuth film Glassy carbon electrode Mercury(II) detection |
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