A polypyrrole-based solid-contact Pb2+-selective PVC-membrane electrode with a nanomolar detection limit

被引：0
|
作者：
Jolanda Sutter
Ernö Lindner
Robert E. Gyurcsányi
Ernö Pretsch
机构：
[1] ETH Hönggerberg,Laboratorium für Organische Chemie
[2] The University of Memphis,Department of Biomedical Engineering
[3] Budapest University of Technology and Economics,Institute of General and Analytical Chemistry
来源：
Analytical and Bioanalytical Chemistry | 2004年 / 380卷
关键词：
Ion-selective electrode; Solid contact; Polypyrrole; Lower detection limit;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ion-selective electrodes (ISE) based on conventional plasticized PVC membranes with solid inner contact (SC) have so far had unsatisfactory lower detection limits. Here it is shown that electropolymerization of pyrrole in the presence of potassium hexacyanoferrate(II)/(III) on Pt results in adequate inner contact for SC-ISE. The nanomolar lower detection limit achieved with the Pb2+-selective PVC membranes investigated is comparable with values obtained with optimized internal solutions of liquid-contact ISE.
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页码：7 / 14
页数：7
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