STUDIES OF QUATERNARY AMMONIUM ION INTERFERENCE ON POTASSIUM ION-SELECTIVE ELECTRODES

被引：8

作者：

LEWENSTAM, A

ERKOLA, E

LEHMENKUHLER, A

机构：

[1] KONE INSTRUMENTS,RES & DEV GRP,SF-02320 ESPOO,FINLAND

[2] UNIV MUNSTER,INST PHYSIOL 1,W-4400 MUNSTER,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 346卷 / 6-9期

关键词：

D O I：

10.1007/BF00321248

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The influence of quaternary ammonium chlorides on potassium ion-selective electrodes is described. The observed decrease of sensitivity towards potassium ions, up to quasi-Nernstian towards chloride ions in the extreme case, is explained by ion-partition and ion-exchange processes at the membrane surface. A scheme of interference pathways is presented and a possibility of eliminating undesirable influences is given.

引用

页码：577 / 579

页数：3

共 16 条

[1]

AMMANN D, 1983, ION SEL ELECTRODE R, V5, P3

[2] POLYMER MEMBRANE ELECTRODES .2. POTASSIUM ION-SELECTIVE MEMBRANE ELECTRODE [J].