杂铜中金、银的测定方法研究

在参考粗铜中测定金银的国家标准分析方法基础上,对杂铜样品组成、取样代表性、样品分解及贵金属的快速有效分离富集等进行了研究,建立了杂铜中贵金属金银的分析方法。该方法不仅准确可靠、代表性好、适用含量范围宽,而且大大缩短了分析周期。对于含量为Au2 83g/t、Ag956g/t的杂铜,测定的相对标准偏差(RSD)分别为6 47%和2 40%。

STUDY ON DETERMINATION OF GOLD AND SILVER IN MISCELLANEOUS COPPER BY FIRE-ASSAY

On the basis of referring the State Standard for determination of gold and silver in crude copper and in the light of studying the sample components,representative sampling,sample decomposition,and pre separation and enrichment of noble metals,a method for determination of gold and silver in miscellaneous copper by wet dry fire assaying was reported in this paperThis method is reliable and precise,and has a good representative,a wide applicable range and short analyzing periodThis method has been applied for determination of Au and Ag in miscellaneous copper with satifactory resultsThe precision of the method is 647% RSD(n=11,Au283g/t) and 240% RSD(n=11,Ag956g/t)