CHROMIUM SPECIATION BY COLUMN CHROMATOGRAPHY USING A DIRECT-CURRENT PLASMA ATOMIC EMISSION SPECTROMETER

被引：36

作者：

AHMAD, S ^{[1
]}

MURTHY, RC ^{[1
]}

CHANDRA, SV ^{[1
]}

机构：

[1] IND TOXICOL RES CTR,POST BOX 80,LUCKNOW 226001,UTTAR PRADESH,INDIA

来源：

ANALYST | 1990年 / 115卷 / 03期

关键词：

Alumina column; Chromium(iii); Chromium(vi); Direct current plasma atomic emission spectrometry; Separation;

D O I：

10.1039/an9901500287

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple and convenient method has been developed for the separation of CrIII and CrVI in synthetic aqueous solutions on an alumina column (10.0 × 4.0 mm i.d.) attached directly to a direct current plasma atomic emission spectrometer. The readings recorded on an × - y plotter demonstrate that both species of Cr can be retained on the column and then eluted with 0.02 M HNO3 (CrIII) and 1.0 M ammonia solution (CrVI). Low concentrations of Cr can also be detected after separation with the proposed method by passing larger sample volumes through the column. A study of the effect of pH showed that the best separation was achieved between pH 3.0 and 5.5.

引用

页码：287 / 289

页数：3

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