盐酸除锑-原子吸收测定锑矿中的金  

Determination of Gold in Antimony Ores by AAS after Removal of Antimony with HCl

作　　者：徐洛[1] 章勇[1] 马玲[1] 胡浩[1] 

机构地区：[1]安徽省地质实验研究所,安徽合肥230001

出　　处：《岩矿测试》2001年第2期142-144,共3页Rock and Mineral Analysis

摘　　要：将样品灼烧后 ,用HCl浸煮、蒸发除锑 ,消除锑对原子吸收法测金的干扰 ;并讨论了除锑条件和除锑效率。将所拟方法与HBr除锑测金的方法进行比较 ,分析结果基本一致 ,样品加标的回收率为 98%～ 1 0 4 % ,RSD(n =5) <2 .5%A method for the determination of gold in antimony ores by AAS was reported in this paper. Samples ignited were decomposed with HCl and Sb was driven off to eliminate the interference effect from Sb on determination of Au by AAS. The optimized conditions and effectiveness for the removal of Sb in samples by HCl were discussed. The method has been applied to the determination of gold in antimony ores. The results were in agreement with those from the method with removal of Sb by HBr. The recoveries of standard additions were 98%～104% with precision of <2.5% RSD( n =5).

关 键 词：金 盐酸 原子吸收 锑矿石 除锑效率 回收率 

分 类 号：P578.29[天文地球—矿物学] P575.4[天文地球—地质学]