410哌啶树脂富集分离火焰原子吸收法测定岩矿中金  

Determination of Gold in Rocks and Ores by AAS after Pree oncentration and Separation with 410 Piperidine Resin

作　　者：李功顺 LI Gongshun

机构地区：[1]核工业部西北地勘局二〇三研究所

出　　处：《岩矿测试》1988年第4期288-290,I0006,共4页Rock and Mineral Analysis

摘　　要：本文采用410哌啶树脂富集分离金。以2.5—30%的王水或0.5—4mol/L盐酸介质为上柱液,近沸的0.3%硫脲溶液为解吸液最后以原子吸收进行测定。方法快速、简便,用于岩矿中金的测定结果满意。The behaviour of gold in preconcentration and separation with 410 piperi-dine resin was studied.A new method for the determination of gold in rocks and ores was proposed.Gold was preconcentrated and separated in 0.5 to 4 mol/L hydrochloric acid and eluted quantitatively from the resin with 0.3%thiourea solution.Then gold was determined directly by atomic absorption spectrophoto-metry.The method is simple and rapid and is applicable to the determination of samples with gold content greater than 0.5g/T in rocks and ores.

关 键 词：火焰原子吸收法 原子吸收 金的测定 富集分离 硫脲溶液 盐酸介质 岩矿 解吸液 

分 类 号：O65[理学—分析化学]