Simultaneous measurement of Pb, Cd and Zn using differential pulse anodic stripping voltammetry at a bismuth/poly(p-aminobenzene sulfonic acid) film electrode

被引：136

作者：

Wu, Yun ^{[1
]}

Li, Nian Bing ^{[1
]}

Luo, Hong Qun ^{[1
]}

机构：

[1] Southwest Univ, Minist Educ, Sch Chem & Chem Engn, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Chongqing 400715, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2008年 / 133卷 / 02期

关键词：

bismuth/poly(p-aminobenzene sulfonic acid) film electrode; differential pulse anodic stripping voltammetry; Pb; Cd; Zn; simultaneous determination;

D O I：

10.1016/j.snb.2008.04.001

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel sensor was developed for simultaneous detection of Pb, Cd and Zn, based on the differential pulse anodic stripping response at a bismuth/poly(p-aminobenzene sulfonic acid) (Bi/poly(p-ABSA)) film electrode. This electrode was generated in situ by depositing simultaneously bismuth and the metals by reduction at -1.40V on the poly(p-ABSA) modified electrode. Compared with the bismuth film electrode, the Bi/poly(p-ABSA) film electrode can yield a larger stripping signal for Pb, Cd and Zn. Under the optimum conditions, a linear response was observed for Cd and Zn in the range from 1.00 to 110.00 mu g L-1 and for Pb in the range from 1.00 to 130.00 mu g L-1. The detection limits of Pb(II), Cd(II) and Zn(II) were 0.80,0.63 and 0.62 mu g L-1, respectively. Finally this sensor had been applied to the simultaneous determination of Pb(II), Cd(II) and Zn(II) in river water samples and the results were quite corresponding to the value obtained by atomic absorption spectrometry. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：677 / 681

页数：5

共 26 条

[11] Bismuth film electrode for adsorptive stripping voltammetry -: electrochemical and microscopic study [J].