泡沫塑料富集分离—石墨炉原子吸收法测定化探样品中的痕量金  

Foam enrichment and separation:determination of trace gold in geochemical samples by graphite furnace atomic absorption method

作　　者：杨金艳[1] 关逸考 赵东阳[1] 何小庆[1] 

机构地区：[1]吉林省有色金属地质勘查局六八队,吉林九台130507

出　　处：《吉林地质》2013年第4期113-114,123,共3页Jilin Geology

摘　　要：样品用1+1王水分解样品,在王水介质中,用泡沫塑料吸附金。在聚四氟乙烯塑料瓶中进行水浴加热溶解,以1%硫脲络合解脱金,在石墨炉原子吸收分光光度计上,采用自动进样方式测定金。经国家一级分析标准样品验证,结果与标准值相符。The samples was decomposed with 1＋1 aqua regia,in aqua regia medium,gold was soaked with foam.With water bath heating dissolved in PTFE plastic bottle,released gold with 1% thiourea complexing,and then in the graphite furnace atomic absorption spectrophotometer,determined gold by automatic sampling method.The method has been proved in geological standard reference samples and the results are in good agreement with certified values.

关 键 词：原子吸收 化探 痕量金 自动进样 

分 类 号：O657.31[理学—分析化学]