REDUCTIVE COPRECIPITATION AND EXTRACTION AS SEPARATION METHODS FOR THE DETERMINATION OF GOLD IN COPPER CONCENTRATES BY AAS AND ICP-AES

被引：23

作者：

ARPADJAN, S ^{[1
]}

JORDANOVA, L ^{[1
]}

KARADJOVA, I ^{[1
]}

机构：

[1] UNIV SOFIA,FAC CHEM,BU-1126 SOFIA,BULGARIA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 347卷 / 12期

关键词：

D O I：

10.1007/BF00324238

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Simple methods for the determination of gold in copper concentrates are presented. Two separation procedures for gold are proposed. The first preconcentration procedure is based on the reductive coprecipitation of Au using part of the matrix copper as collector. The second implies selective quantitative extraction of Au using the extraction system 0.2 mol/l HCl/IBMK. Flame AAS or ICP-AES are used as instrumental methods and permit the determination of 0.1 - 50 mug/g gold with a relative standard deviation of 3 - 12%.

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页码：480 / 482

页数：3

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