ac-Electrogravimetry study of an all solid state potassium selective electrode with polypyrrole as the solid internal contact

被引：4

作者：

Gabrielli, C

Hémery, P

Liatsi, P

Masure, M

Perrot, H

机构：

[1] Univ Paris 06, UPR 15, CNRS, Lab Interfaces & Syst Electrochim, F-75252 Paris 05, France

[2] Univ Paris 06, UMR 7610, Lab Chim Polymeres, F-75252 Paris 05, France

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 8-9期

关键词：

polypyrrole (ppy); PVC; quartz crystal microbalance; electrochemical impedance;

D O I：

10.1016/j.electacta.2005.02.138

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The performances of all solid state potassium selective electrodes with polypyrrole film as solid internal contact were evaluated. Potentiometric measurements revealed near Nernstian responses close to values already given in the literature for classic ISEs. In addition, ac-electrogravimetry was used in order to study the ions and solvent motions at the membrane/electrolyte interface. We have found that potassium ions enter the selective membrane firstly but solvent molecules and anions are also participating in the phenomenon. (c) 2005 Elsevier Ltd. All rights reserved.

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页码：1704 / 1712

页数：9

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