冷原子吸收法测定合质金中的汞  

Determination of Mercury in Crude Gold by Cold Vapour Atomic Absorpation Spectrometric Method

作　　者：孙龄高[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《分析试验室》1993年第3期58-59,共2页Chinese Journal of Analysis Laboratory

摘　　要：以硫氰酸甲作金的掩蔽剂,用SnCl_2在强碱介质中还原化合汞为原子汞进行汞的冷原子吸收测定。本方法不需分离,直接测定合质金中0.005%～0.05%的汞,相对标准偏差小于5%。Mercury in crude gold has been determined directly without separation by AAS with potassium thiocyanate as the masking reagent for gold and SnCl_2as reductant to reduce mercury into the vapour atomic mercury in NaOH medium. The analytical range of mercury in crude gold is 0.005%锝?.05% with relative standard deviation of less than 5%.

关 键 词：冷原子吸收法 合质金 汞的测定 

分 类 号：TG146.31[一般工业技术—材料科学与工程]