FLOW-INJECTION DETERMINATION OF TRACES OF FORMALDEHYDE BY THE BRILLIANT GREEN SULFITE REACTION WITH SPECTROPHOTOMETRIC DETECTION

被引：20

作者：

SAFAVI, A

ENSAFI, AA

机构：

[1] Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 252卷 / 1-2期

关键词：

FLOW SYSTEM; KINETIC ANALYSIS; SPECTROPHOTOMETRY; FORMALDEHYDE; SULFITE; RESINS; WATERS;

D O I：

10.1016/0003-2670(91)87211-O

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flow-injection system is proposed for the rapid determination of trace amounts of formaldehyde based on its inhibition of the Brilliant Green-sulphite reaction at pH 7. Formaldehyde in the range 40-3000 ng ml-1 can be determined at a rate of 35 +/- 5 samples h-1. The limit of detection was 20 ng ml-1. The relative standard deviation for the determination of 1-mu-g ml-1 formaldehyde was 0.2%. The method was applied to the determination of formaldehyde in melamine-formaldehyde resin and chemical industrial waste water.

引用

页码：167 / 171

页数：5

共 23 条

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