铂族元素在地质样品中分布极不均匀,具有块金效应,必须取大量的样品进行分离富集后才能准确测定。Cu-Ni-PGE硫化物样品含有相对高含量的铂族元素,通常采用经典的火试金法分析,但是该方法的缺点是不同类型的样品需使用不同的试剂配比,回收率不太稳定,而且碲共沉淀富集后大量的Cu Platinum group elements in the distribution of geological samples is extremely uneven, with a nugget effect, you must take a large number of samples for enrichment after enrichment can be accurately measured. Cu-Ni-PGE sulfide samples contain relatively high levels of platinum group elements and are usually analyzed by classical fire assay methods, but the disadvantage of this method is that different types of samples require different reagent ratios and the recovery is less stable , And a large amount of Cu is enriched after tellurium coprecipitation