浅谈泡塑富集火焰原子吸收法测定矿石中的金

Discussion on the plastic foam enrichment determinations of gold in ore by flame atomic absorption spectrometry

文章针对泡塑富集—火焰原子吸收法测定金在实际生产应用中进行的简述步骤如下:第一步是矿石通过破碎再经棒磨机打磨成样品后焙烧除硫得有机质再经王水分解;第二步是金在15%的王水介质中被泡塑吸附富集,泡塑洗净后,再在沸水浴中用1%硫脲溶液解脱(金);第三步是用火焰原子吸收法直接测定。

The paper according to the steps of plastic foam enrichment determination of gold in actual production application of flame atomic absorption method were as follows：the first step is the ore by crushing and then by rod mill grinding into samples after roasting sulfur removal to organic matter and dissolved by aqua regia,the second step is the gold in 15% aqua regia by foam plastic adsorption enrichment, plastic foam wash, and then in a boiling water bath for 1% thiourea disentangling solution free （gold）, the third step is directly determined by flame atomic absorption spectrometry.