王水密闭溶矿-火焰原子吸收光谱法测定金矿石中的金  

Determination of Au in Gold Ore by FAAS With Closed Disgestion by Aqua Regia

作　　者：任志海[1] 夏照明[1] 万兵[2] 

机构地区：[1]吉林省第五地质调查所,吉林九台130500 [2]吉林省第六地质调查所,吉林延吉133000

出　　处：《中国无机分析化学》2015年第1期35-37,共3页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：建立了王水密闭溶矿-火焰原子吸收光谱法测定金矿石中金的方法.研究了溶矿时间、溶液的酸度、解脱时间和共存离子对测定的影响.样品的相对误差在0.84％～1.3％,样品的精密度在0.98％～3.1％,样品的检出限为0.021 4 μg/g.经标准物质验证,结果满意.The method for determining the content of Au in gold ore by FAAS with closed digestion by aqua regia is reported in this paper. The influence of digestion time, solution acidity, desorption time and coexisting ions were studied. The relative errors （RE） in the sample are between 0. 84%~1. 30%. The detection limit is 0. 021 4 μg/g with 0.98%~3.1% RSD. The proposed method is validated by reference materials with satisfactory results.

关 键 词：金矿石 火焰原子吸收光谱法 王水密闭溶矿 

分 类 号：O657.31[理学—分析化学] TH744.12[理学—化学]