Lead(II)-selective electrode based on phenyl disulfide

被引：23

作者：

Abbaspour, A ^{[1
]}

Khajeh, B ^{[1
]}

机构：

[1] Shiraz Univ, Dept Chem, Shiraz 71454, Iran

来源：

ANALYTICAL SCIENCES | 2002年 / 18卷 / 09期

关键词：

D O I：

10.2116/analsci.18.987

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A PVC membrane electrode for lead ions based on phenyl disulfide as the membrane carrier was developed. The electrode exhibits a good Nernstian slope of 29.3 +/- 0.7 mV/decade and a linear range of 2.0 x 10(-6) - 1.0 X 10(-2) M for Pb(NO3)(2). The limit of detection is 1.2 x 10(-6) M. It has a response time of 45 s and can be used for at least fifty days without any divergence in potential. The proposed membrane sensor revealed high selectivity for Pb2+ over a wide variety of other metal ions and could be used in the pH range of 3.5 - 6.3. The electrode was used as an indicator electrode in potentiometric titration of lead ions.

引用

页码：987 / 991

页数：5

共 23 条

[1] Chromium(III) ion-selective electrode based on 4-dimethylaminoazobenzene [J].