COBALT PHTHALOCYANINE DERIVATIVES AS NEUTRAL CARRIERS FOR NITRITE-SENSITIVE POLY(VINYL CHLORIDE) MEMBRANE ELECTRODES

被引：95

作者：

LI, JZ ^{[1
]}

WU, XC ^{[1
]}

YUAN, R ^{[1
]}

LIN, HG ^{[1
]}

YU, RQ ^{[1
]}

机构：

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

来源：

ANALYST | 1994年 / 119卷 / 06期

关键词：

NEUTRAL CARRIER; NITRITE ELECTRODE; POLY(VINYL CHLORIDE) MEMBRANE ELECTRODE; COBALT PHTHALOCYANINE DERIVATIVE;

D O I：

10.1039/an9941901363

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

PVC membrane electrodes based on cobalt phthalocyanine and its derivatives are described. An electrode that exhibits the selectivity sequence NO2- > SCN- approximate to I- >> CIO4- > Br- > NO3- > Cl- > OAc- was prepared. The electrodes show a linear response towards nitrite in the range 6 X 10(-2)-5 X 10(-6) mol dm(-3) with a slope of -52.0 mV decade(-1) (at 20 degrees C). The electrode has a satisfactory reproducibility and a rapid potential response. The UV spectra of the carrier and the a.c. impedance of the membrane were studied.

引用

页码：1363 / 1366

页数：4

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