Potentiometric pH sensors based on chemically modified electrodes with electropolymerized metal-tetraaminophthalocyanine

被引：32

作者：

Kang, TF ^{[1
]}

Xie, ZY ^{[1
]}

Tang, H ^{[1
]}

Shen, GL ^{[1
]}

Yu, RQ ^{[1
]}

机构：

[1] HUNAN UNIV,DEPT CHEM & CHEM ENGN,CHANGSHA 410082,HUNAN,PEOPLES R CHINA

来源：

TALANTA | 1997年 / 45卷 / 02期

关键词：

chemically modified electrode; metal tetraaminophthalocyanine; pH response; potentiometry;

D O I：

10.1016/S0039-9140(97)00124-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Potentiometric pH sensors based on polymer film were prepared by electropolymerization of the monomer nickel(II)-4,4',4 '', 4'''-tetraaminophthalocyanine (NiTAPc) or copper(II)-4,4',4 '', 4'''-tetraaminophthalocyanine (CuTAPc) on glassy carbon (GC) electrodes. The polymer of metal tetraaminophthalocyanine (p-MTAPc) film coated electrodes show a slope of 55 +/- 1 mV/pH (at 20 degrees C) and nearly Nernstain potentiometric response to pH over the range of pH 1-13. The electrodes possess good potential reproducibility and high selectivity, and are useful sensing devices in pH determination and end-point indication of acid-base potentiometric titration. (C) 1997 Elsevier Science B.V.

引用

页码：291 / 296

页数：6

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