SULFATE-SELECTIVE ELECTRODE OF POLY(VINYL CHLORIDE) MEMBRANE IMPREGNATED WITH BARIUM CHLORANILATE

被引：6

作者：

KOJIMA, T

NAKAGAWA, K

SHIGETOMI, Y

机构：

[1] Department of Chemistry, Faculty of Science, Okayama University of Science, Okayama 700, Ridai-cho

来源：

ANALYTICAL SCIENCES | 1994年 / 10卷 / 06期

关键词：

ION-SELECTIVE ELECTRODE; SULFATE-SENSITIVE MEMBRANE ELECTRODE; BARIUM CHLORANILATE; POLY(VINYL CHLORIDE);

D O I：

10.2116/analsci.10.939

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A solid-state heterogeneous membrane electrode that is selective to sulfate ions was prepared from a poly(vinyl chloride) membrane impregnated with barium chloranilate. Although the electrode response was under Nernstian (16 mV/pSO(4)(2-)) it was applicable to a sulfate concentration range of 10(-1.5) to 10(-4) mol dm(-3). The preferable pH range was 6-11 and the response time was about 30 s. Sulfate ions in organic compounds and polymers can be assayed with this electrode without serious errors at low concentrations of various interfering anions. The electrode remained active for at least 300 measurements, or 3 months.

引用

页码：939 / 942

页数：4

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