阴离子交换树脂-活性炭动态吸附无火焰原子吸收法测定矿石中的微量金铂钯

Determination of Gold, Platinum, Palladium in Ores by Graphite Furnace AAS after Pre-concentration with Anion Exchange Resin and Activated Charcoal

摘要: 采用717阴离子交换树脂-活性炭分离富集矿石中的微量Au、Pt、Pd。40μg待测元素富集结果表明,Au、Pt、Pd的回收率分别为100%、95.3%和96.3%。以HC l为介质在无火焰原子吸收仪上测定。方法经对国家一级标准物质GBW 07291、GBW 07292分析检验,结果与标准值相符。对GBW 07291国家一级标准物质测定7次,其精密度(RSD)分别为:Au 9.4%、Pt 11.2%、Pd 3.0%。方法适用于矿石中10-6~10-9量级Au、Pt、Pd的测定。

Abstract: A method for the determination of gold,platinum, palladium in ores is developed.In the medium of HCl,gold,platinum,palladium is determined by graphite furnace AAS after pre-concentration with anion exchange resin and activated charcoal.The method has been