摘要
研究了乙醇 -氯化钠 -水双水相体系在氢溴酸介质中的分相条件及对金溴络阴离子的萃取行为。试验表明 ,在氢溴酸介质中 ,体系可定量萃取金 (Ⅲ ) ,萃取率达99 1%。合成样品的分离结果表明 ,该方法可用于从贱金属中分离金 ,并据此建立了乙醇-氯化钠 -水双水相体系萃取分离原子吸收测定金的方法。对于阳极泥、砂铂矿的分离分析与其它方法比较 ,结果相符。
A new method for separation of bromide complex anions of Au(Ⅲ) with liquid liquid extraction system of ethanol NaCl-Water in bromide acid is investigated,The experimental results indicate that the method can extract Au(Ⅲ) in the system with 99.1% of extraction ratio of Au(Ⅲ).It also shows from separating result of synthetic sample that the method can separate Au from base metals,thus the derterimination of gold by extraction separation AAS method is established which has been used for derterimination of Au in anode slime and placer gold with the results agreed well to those of other method.
出处
《黄金》
CAS
2001年第1期47-49,共3页
Gold
关键词
乙醇
氯化钠
双水相萃取
金
氨溴酸
测定
ethanol
sodium chloride
liquid liquid extraction
gold
bromide acid
