FLOW-INJECTION SPECTROPHOTOMETRIC DETERMINATION OF RESIDUAL FREE CHLORINE AND CHLORAMINE

被引：33

作者：

CHAURASIA, A ^{[1
]}

VERMA, KK ^{[1
]}

机构：

[1] RANI DURGAVATI UNIV,DEPT CHEM,JABALPUR 482001,INDIA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1995年 / 351卷 / 2-3期

关键词：

D O I：

10.1007/BF00321662

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

2,4-Dinitrophenylhydrazine has been suggested as a new reagent for the Row-injection spectrophotometric determination of residual chlorine based an its oxidation to 2,4-dinitrophenyldiazonium ion. The measurement of the decrease in colour intensity under reversed flow-injection (reagent injection) conditions has been used for the determination of 0.1-10 mg/l Cl present as free or combined chlorine, and for its speciation. The limit of detection was 0.05 mg/l Cl. Copper (II), iron (III) and many other ions have been found not to vitiate the results.

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页码：335 / 337

页数：3

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