AMPEROMETRIC MEMBRANE-ELECTRODE FOR MEASUREMENT OF OZONE IN WATER

被引：29

作者：

STANLEY, JH ^{[1
]}

JOHNSON, JD ^{[1
]}

机构：

[1] UNIV N CAROLINA,SCH PUBL HLTH,DEPT ENVIRONM SCI & ENGN,CHAPEL HILL,NC 27514

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 13期

关键词：

D O I：

10.1021/ac50049a020

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An amperometric membrane electrode has been developed for the selective measurement of molecular ozone in water. The membrane electrode system consists of a gold cathode, a double |unction reference electrode (10% KNO3/SCE), a potassium sulfate electrolyte (0.5 M, pH 3.7), a Teflon membrane (3.3X10-3 cm thickness). A current sensitivity of 0.484 μA (mg/L)-1 (cm)-2 was observed at an applied voltage of +0.6 V (vs, SCE) at 22 °. A detection limit of 62 μg/L Is predicted at twice the observed residual current. Less than 2% interference was observed from bromine, hypobromous acid, chloride dioxide, hydrogen peroxide, trichloramlne, hypochlorous acid. © 1979, American Chemical Society. All rights reserved.

引用

页码：2144 / 2147

页数：4

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