EXTRACTION, SEPARATION AND SPECTROPHOTOMETRIC DETERMINATION OF CADMIUM AND MERCURY USING TRIPHENYLPHOSPHINE OXIDE AND ITS APPLICATION TO ENVIRONMENTAL-SAMPLES

被引：28
|
作者：
RAMAN, B
SHINDE, VM
机构：
[1] Analytical Laboratory, Department of Chemistry, Institute of Science, Bombay 400 032
来源：
ANALYST | 1990年 / 115卷 / 01期
关键词：
Cadmium(ii); Mercury(ii); Salicylate solution; Solvent extraction; Triphenylphosphine oxide;
D O I：
10.1039/an9901500093
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method is proposed for the solvent extraction of cadmium and mercury from salicylate media using triphenylphosphine oxide as extractant. The optimum extraction conditions were evaluated from a critical study of the effect of pH, sodium salicylate concentration and the concentration of triphenylphosphine oxide. The probable composition of the species has been deduced from log - log data and an extraction mechanism is suggested. The method has been used to separate zinc, cadmium and mercury from binary and ternary mixtures and for the spectrophotometric determination of mercury or cadmium in environmental samples.
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页码：93 / 98
页数：6
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