Electrochemical determination of methyl parathion at a Pd/MWCNTs-modified electrode

被引:79
|
作者
Huang, Biao [1 ]
Zhang, Wei-De [1 ]
Chen, Cai-Hong [1 ]
Yu, Yu-Xiang [1 ]
机构
[1] S China Univ Technol, Nano Sci Res Ctr, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
关键词
Nanoparticles; Carbon nanotubes; Methyl parathion; Palladium; Electroanalysis; CARBON NANOTUBES; ORGANOPHOSPHATE PESTICIDES; SELECTIVE DETERMINATION; AMPEROMETRIC DETECTION; STRIPPING ANALYSIS; ACETYLCHOLINESTERASE; SENSOR; NANOPARTICLES; CHROMATOGRAPHY; BIOSENSOR;
D O I
10.1007/s00604-010-0408-z
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Palladium nanoparticles supported on MWCNTs (Pd/MWCNTs) were successfully prepared by a simple ethylene glycol reduction method in an oil bath. An electrochemical sensor based on Pd/MWCNTs nanocomposite-modified glassy carbon electrode was fabricated for the determination of methyl parathion by differential pulse voltammetry measurement. A highly linear response to methyl parathion in the concentration ranging from 0.10 mu g mL(-1) to 14 mu g mL(-1) was observed, and a detection limit of 0.05 mu g mL(-1) was obtained with the calculation based on signal/noise=3. The present work provides a simple and rapid approach to the detection of methyl parathion.
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页码:57 / 62
页数:6
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