SOLVENT-EXTRACTION AND CHEMILUMINESCENCE DETERMINATION OF GOLD IN SILVER ALLOY WITH LUMINOL IN REVERSE MICELLES

被引：23

作者：

IMDADULLAH ^{[1
]}

FUJIWARA, T ^{[1
]}

KUMAMARU, T ^{[1
]}

机构：

[1] HIROSHIMA UNIV, FAC SCI, DEPT CHEM, 1-3-1 KAGAMIYAMA, HIGASHIHIROSHIMA 724, JAPAN

来源：

ANALYTICAL CHEMISTRY | 1993年 / 65卷 / 04期

关键词：

D O I：

10.1021/ac00052a019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new method, based on the direct combination of solvent extraction with luminol chemiluminescence (CL) in a reversed micellar system of cetyltrimethylammonium chloride-water (buffered with sodium carbonate)-6:5 (v/v) chloroform-cyclohexane, is established for the determination of gold in aqueous solutions. The interference behavior of 15 metals on the reference gold CL signals was evaluated. By dispersing an aqueous solution of the individual interferent alone and in admixture with the analyte, a comparative inquiry on their CL behavior was also carried out in the reversed micellar medium. Separation of analyte from interferents by extraction with tri-n-octylphosphine oxide in chloroform resulted in reduced or no interference. The present method was applied to the determination of gold in industrial samples of silver-based alloy.

引用

页码：421 / 424

页数：4

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