Flow-injection analysis with chemiluminescent detection of sulphite using Na2CO3-NaHCO3-Cu2+ system

被引：84

作者：

Lin, JM

Hobo, T

机构：

[1] Department of Industrial Chemistry, Faculty of Engineering, Tokyo Metropolitan University, Hachioji-Shi, Tokyo 192-03

来源：

ANALYTICA CHIMICA ACTA | 1996年 / 323卷 / 1-3期

关键词：

chemiluminescence; flow-injection; sulphite; wine;

D O I：

10.1016/0003-2670(95)00611-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple flow-injection system with chemiluminescent detection for selective determination of sulphite is described. The light accompanying the reaction between sodium carbonate and copper(II) mixture solution with sulphite is detected. The concentration of sulphite is proportional to the chemiluminescence intensity in the range of 1.0 x 10(-6)-5 x 10(-4) mol l(-1). The limit of detection is 5 x 10(-7) mol l(-1) and the relative standard deviation is 4.6% for the 5 x 10(-6) mol l(-1) sulphite solution in nine repeated measurements. This method has been successfully applied to the determination of sulphite in wines. The possible reaction mechanism is also discussed.

引用

页码：69 / 74

页数：6

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