期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 4, 期 2, 页码 193-196出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S1388-2481(01)00301-0
关键词
bismuth film; carbon paste electrodes; stripping voltammetry
In this preliminary note, carbon paste electrodes (CPEs) plated with a bismuth film are presented. The bismuth film can be generated onto the carbon paste surface either from an external plating solution or in situ; the latter being performed in two ways: (i) as a spike of the Bi3+ ions to the solution or (ii) via modifying the carbon paste with solid bismuth oxide (5% m/m). As shown on selected examples, bismuth-film-plated CPEs exhibit a good performance in voltammetric stripping analysis of some heavy metals such as Pb, Cd, and Zn. (C) 2002 Elsevier Science B.V. All rights reserved.
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