期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 183, 期 1-3, 页码 138-144出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2010.06.127
关键词
Multi-walled carbon nanotube; RDX; Explosive; Adsorptive stripping voltammetry; Electrochemical impedance spectroscopy
资金
- Isfahan University of Technology (IUT) Research Council
- Center of Excellence in Sensor and Green Chemistry and Nano
A study of the electrochemical behavior and determination of RDX, a high explosive, is described on a multi-walled carbon nanotubes (MWCNTs) modified glassy carbon electrode (GCE) using adsorptive stripping voltammetry and electrochemical impedance spectroscopy (EIS) techniques. The results indicated that MWCNTs electrode remarkably enhances the sensitivity of the voltammetric method and provides measurements of this explosive down to the sub-mg/l level in a wide pH range. The operational parameters were optimized and a sensitive, simple and time-saving cyclic voltammetric procedure was developed for the analysis of RDX in ground and tap water samples. Under optimized conditions, the reduction peak have two linear dynamic ranges of 0.6-20.0 and 8.0-200.0 mM with a detection limit of 25.0 nM and a precision of <4% (RSD for 8 analysis). (C) 2010 Elsevier B.V. All rights reserved.
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