期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 35, 期 -, 页码 8-14出版社
ELSEVIER
DOI: 10.1016/j.msec.2013.10.025
关键词
Modified carbon paste electrode; Cadmium determination; Multi-walled carbon nanotubes; Ionic liquid; Anodic stripping voltammetery
资金
- Bu-Ali Sina University Research Council
- Center of Excellence in Development of Environmentally Friendly Methods for Chemical Synthesis (CEDEFMCS)
A simple, highly sensitive and selective carbon nanocomposite electrode has been developed for the electrochemical trace determination of cadmium. This sensor was designed by incorporation of multi-walled carbon nanotubes (MWCNTs) and a new synthesized Schiff base into the carbon paste ionic liquid electrode (CPEIL) which provides remarkably improved sensitivity and selectivity for the electrochemical stripping assay of Cd(II). The detection limit of the method was found to be 0.08 mu g L-1 (S/N = 3) that is lower than the maximum contaminant level of Cd(II) allowed by the Environmental Protection Agency (EPA) in standard drinking waters. The proposed electrode exhibits good applicability for monitoring Cd(II) in various real samples. (C) 2013 Elsevier B.V. All rights reserved.
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