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

Authors
ARPADJAN S JORDANOVA L KARADJOVA I
Citation
S. Arpadjan et al., REDUCTIVE COPRECIPITATION AND EXTRACTION AS SEPARATION METHODS FOR THE DETERMINATION OF GOLD IN COPPER CONCENTRATES BY AAS AND ICP-AES, Fresenius' journal of analytical chemistry, 347(12), 1993, pp. 480-482
Citations number
17
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
347
Issue
12
Year of publication
1993
Pages
480 - 482
Database
ISI
SICI code
0937-0633(1993)347:12<480:RCAEAS>2.0.ZU;2-5
Abstract
Simple methods for the determination of gold in copper concentrates ar e presented. Two separation procedures for gold are proposed. The firs t preconcentration procedure is based on the reductive coprecipitation of Au using part of the matrix copper as collector. The second implie s selective quantitative extraction of Au using the extraction system 0.2 mol/l HCl/IBMK. Flame AAS or ICP-AES are used as instrumental meth ods and permit the determination of 0.1 - 50 mug/g gold with a relativ e standard deviation of 3 - 12%.