原子吸收法测定炼银炉渣中的金

摘要

A method for the determination of gold in silver-smelting slag by AAS after decomposition of the sample and removal of silicon with HF-H2SO4 was reported in this paper.And gold was preconcentrated by solvent extraction. The recovery of standard addition for gold is 92.0%～104.0% with precision of 3.8% RSD (n=11). The method has been applied to the determination of gold in silver-smelting slag samples with satisfactory results.%采用HF-H2SO4除硅，萃取-原子吸收法测定炼银炉渣中的金。样品加标回收率为92.0%～104.0%，相对标准偏差为3.8%(n=11)。将该法应用到炼银炉渣中金的测定，结果符合分析质量要求。