Chrono amperometric determination of hydrogen peroxide in swimming pool water using an ultramicroelectrode array

被引：41

作者：

Schwake, A ^{[1
]}

Ross, B ^{[1
]}

Cammann, K ^{[1
]}

机构：

[1] Inst Chemo & Biosensorik eV, D-48149 Munster, Germany

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 46卷 / 03期

关键词：

ultramicroelectrode array; chrono amperometry; hydrogen peroxide; swimming pool water; disinfection; NAFION (TM) membrane;

D O I：

10.1016/S0925-4005(98)00124-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ultramicroelectrode arrays have been applied for monitoring the disinfectant hydrogen peroxide in swimming pool water. The sensors were manufactured using silicon thin-film technology. Each consisted of nine miniaturized platinum working electrodes connected in parallel. A platinum counter electrode and a silver/silver chloride reference electrode completed the measuring setup. The ultramicroelectrode arrays were characterized by cyclic voltammetry and chrono amperometry. The sensor properties could be improved and the interfering influence of the swimming pool water matrix was reduced by covering the working electrodes of the arrays with NAFION(TM) membranes. A comparison of the introduced chrono amperometric method using the ultramicroelectrode array with the German standard method (DIN) for the hydrogen peroxide determination showed that the accuracy of the NAFION(TM) coated sensors is suitable for monitoring and controlling the hydrogen peroxide concentration in swimming pool waters. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：242 / 248

页数：7

共 20 条

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