硫脲介质火焰原子吸收光谱法测定铅精矿中的金

Detemination of Gold in Lead Concentrate by Flame Atomic Absorption Spectrometry in Thiourea Medium

摘要: 介绍了用硫酸钠消除铅的干扰，在王水—硫脲介质中用火焰原子吸收法测定铅精矿中金的新方法。试验结果表明：线性范围为０～５．０μｇ／ｍＬ，方法回收率为９５．６％～１０２．１％，相对标准偏差小于２．１２％。

Abstract: A new method to determine gold of lead concentrate by flame atomic absorption spectrometry in the medium of thiourea- aqua was studied.The disturbances of lead was removed by using sodium sulphate. The results obtained show that the linear range is 0￣5.0mg/L, with a recovery of 95.6%￣102.1%,and the relative standard deviation is less than 2.12%.