SPECTROPHOTOMETRIC DETERMINATION OF SOME CARBOHYDRATES, THIOCARBONYLS AND HYDRAZINES

被引：4

作者：

AHMED, MA

机构：

[1] Department of Chemistry, University College for Girles, Ain Shams University, Heliopolis, Cairo

来源：

ANALYTICAL LETTERS | 1994年 / 27卷 / 10期

关键词：

SPECTROPHOTOMETRY; CARBOHYDRATES; THIOCARBONYLS; HYDRAZINES;

D O I：

10.1080/00032719408002645

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A spectrophotometric method for the determination of microgram amounts of some carbohydrates, thiocarbonyls and hydrazines was developed. It is based on the reaction of these compounds with either cerium (IV) or dichromate. The excess oxidant is allowed to react with iron (II) as a reductant and hexacyanoferrate (III) to develop Prussian blue colour with maximum absorption at 700 nm. The optimum procedural conditions and stoichiometry are investigated. Analysis of sample sizes down to 50 mu g shows an average recovery of 97% and a relative standard deviation of 1%.

引用

页码：1979 / 1988

页数：10

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