Planar thick-film pH electrodes based on ruthenium dioxide hydrate

被引：85

作者：

Mihell, JA ^{[1
]}

Atkinson, JK ^{[1
]}

机构：

[1] Univ Southampton, Dept Mech Engn, Thick Film Unit, Southampton SO17 1BJ, Hants, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 48卷 / 1-3期

关键词：

ruthenium dioxide; planar thick film electrode; oxidation;

D O I：

10.1016/S0925-4005(98)00090-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A planar thick film electrode for the potentiometric measurement of pH is introduced. The screen printed active layer is based on ruthenium dioxide hydrate held in a polymer matrix. The electrode has near-Nernstian (-59.15 mV/pH) behaviour in the pH range 2-10. As the electrode was aged over 60 days, the pH response was seen to be dependent on the conditions of storage. This behaviour is compared with that predicted by theoretical mechanisms for metal oxide pH response. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：505 / 511

页数：7

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