Facile and Simultaneous Stripping Determination of Zinc, Cadmium and Lead on Disposable Multiwalled Carbon Nanotubes Modified Screen-Printed Electrode

被引：53
作者：
Fu, Liang [1 ]
Li, Xueling [2 ]
Yu, Jianshuan [3 ]
Ye, Jianshan [1 ]
机构：
[1] S China Univ Technol, Coll Chem & Chem Engn, Guangzhou 510641, Guangdong, Peoples R China
[2] Guangzhou Ingsens Sensor Technol Co Ltd, Guangzhou 510530, Guangdong, Peoples R China
[3] Xiamen Environmemtal Monitoring Ctr, Xiamen 361004, Peoples R China
来源：
ELECTROANALYSIS | 2013年 / 25卷 / 02期
关键词：
Heavy metal detection; Multiwalled carbon nanotubes; Screen-printed electrodes; Bismuth; Stripping voltammetry; ULTRASENSITIVE VOLTAMMETRIC DETECTION; BISMUTH-FILM ELECTRODES; TRACE HEAVY-METALS; INJECTION ANALYSIS; PB(II); ELECTROANALYSIS; CD(II); ARRAY; IONS; PB;
D O I：
10.1002/elan.201200248
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Screen-printed electrodes (SPEs) are cheap and disposable. But their application for heavy metal detection is limited due to the low sensitivity and poor selectivity. Here we report the ultrasensitive and simultaneous determination of Zn2+, Cd2+ and Pb2+ on a multiwalled carbon nanotubes and Nafion composite modified SPE with in situ plated bismuth film (MWCNTs/NA/Bi/SPE). The linear curves range from 0.5100 mu gL1 for Zn2+ and 0.580 mu gL1 for Cd2+. Uniquely, the linear curve for Pb2+ ranges from 0.05100 mu gL1 with a detection limit of 0.01 mu gL1. The practical application was verified in real samples with satisfactory results.
引用
收藏
页码：567 / 572
页数：6
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