SOLID SOLVENT MEMBRANE COATED WIRE ELECTRODES AND THEIR RESPONSE TO NITRATE, PARA-TOLUENESULFONATE, CHLORIDE, CALCIUM, AND POTASSIUM

被引：21

作者：

HARA, H ^{[1
]}

KONDOH, Y ^{[1
]}

MITANI, O ^{[1
]}

OKAZAKI, S ^{[1
]}

机构：

[1] KYOTO UNIV,FAC SCI,DEPT CHEM,KYOTO 606,JAPAN

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 11期

关键词：

D O I：

10.1021/ac00210a009

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new type of membrane matrix for the preparation of ionselective coated wire electrodes is developed. It uses a solid solvent membrane composed of an organic compound with a low melting point, such as stearyl alcohol (octadecan-1-ol) or triphenyl phosphate, in which are dissolved ion-exchanging materials for nitrate, p-toluenesulfonate, chloride, calcium, and potassium. The coated wire electrode is prepared by dipping its tip into a molten ion exchanger. The response characteristics and the selectivity of the electrodes as well as the effect of pH on the electrode cell assembly were examined. A calcium-selective solid solvent membrane electrode (SSME) is used to determine calcium in water samples. The results are compared with those obtained by complexometric titration and atomic absorption spectroscopy. © 1990, American Chemical Society. All rights reserved.

引用

页码：1139 / 1143

页数：5

共 26 条

[1] ANION RESPONSES AND POTENTIAL FUNCTIONS FOR NEUTRAL CARRIER MEMBRANE ELECTRODES [J].