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矿石中微量金的测定,过去往往是采用试金富集化学测定,近年来,已有不少单位用湿法分析代替。本试验主要是为某地铜钼尾矿寻找一个湿法分析微量金的方法。在微量元素的分析中,作为测定元素的分离富集,常采用有机溶剂萃取,离子交换和共沉淀等手段。此外,还曾有人用硫化镉沉淀滤纸分离镍中的铜。近年,文献[1]的作者提出了一个简易的方法,用含有难溶于水的有机试剂制成的试剂滤纸快速地从金属铜及铅中分离极微量的金、
Determination of trace amounts of gold in the ore, the past is often used assay enrichment chemical determination, in recent years, many units have been replaced by wet analysis. This test is mainly for a copper molybdenum tailings to find a wet method of trace gold. In the analysis of trace elements, as the determination of the element separation and enrichment, often using organic solvent extraction, ion exchange and co-precipitation and other means. In addition, there was also the use of cadmium sulfide precipitation filter paper in the separation of copper. In recent years, the author of [1] proposed a simple method for quickly separating trace amounts of gold from copper and lead using a reagent filter made of an organic reagent containing a poorly water-soluble organic reagent,