期刊
ANALYTICA CHIMICA ACTA
卷 916, 期 -, 页码 17-23出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2016.03.003
关键词
Antimony film electrodes; Screen-printed electrodes; Anodic stripping voltammetry; Heavy metal ions
资金
- Ministry of Science and Innovation of Spain [CTQ2012-32863]
- Generalitat of Catalonia [2014SGR269]
- University of Barcelona
Three different commercial carbon nanomaterial-modified screen-printed electrodes based on graphene, carbon nanotubes and carbon nanofibers were pioneeringly tested as electrode platforms for the plating with Sb film. They were microscopically and analytically compared to each other and to the most conventional unmodified carbon screen-printed electrode (SPCE). The obtained detection and quantification limits suggest that the in-situ antimony film electrode prepared from carbon nanofibers modified screen-printed electrode (SbSPCE-CNF) produces a better analytical performance as compared to the classical SPCE modified with antimony for Pb(II) and Cd(II) determination, approving its appropriateness for measuring low mg L-1 levels of the considered metals. In-situ SbSPCE-CNF was successfully used for the simultaneous determination of Pb(II) and Cd(II) ions, by means of differential pulse anodic stripping voltammetry, in a certified reference estuarine water sample with a very high reproducibility and good trueness. (C) 2016 Elsevier B.V. All rights reserved.
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