高压密封溶样—原子吸收光谱法测定银

High pressure seal sample—atomic absorption spectrometry determination of silver

近几年在数个矿区金、银的查定以及单矿物金、银的相态分析中,在原子吸收光谱法测定时常出现一些问题,造成成批样品抽查不合格的问题,本文采用高压密封溶解样法,利用TAS-990原子吸收分光光度计测定矿石及冶炼废渣中的银,实验结果表明,本文提出的该方法操作简单快速,不污染环境,在硫脲的介质中进行原子吸收测定,可以提高方法的稳定性,经样品分析验证,结果令人满意。

In recent years a number of the assessment of the mining of gold, silver and the mineral phase analysis of gold, silver, often appear some problems in the atomic absorption spectrometry, selective examination unqualified batch sample problem, this paper adopts high pressure seal dissolving sample method, using TAS-990 type atomic absorption spectrophotometer determination of silver in ore and smelting slag, the experiment results show that the method proposed in this paper the operation is simple rapid, polluting the environment, in the medium of thiourea in atomic absorption determination, can improve the stability of the method, verified by sample analysis, the result is satisfactory.