Abstract:In order to realize the accurate quantitative analysis of gold, palladium and platinum in central control liquid materials, and provide data support for directional enrichment and efficient extraction in process production. This paper studies and establishes an ICP-AES method for the determination of gold, platinum and palladium in high nickel-copper liquid samples in smelting systems. Through the experiment, it is confirmed that the test solution is co-precipitated with tellurium, and the precious metal enters the filter residue. After separation and enrichment by the fire test Gold, the composite particles are obtained, and after dissolution by aqua regia, simultaneous determination of the amount of gold, palladium and platinum on an inductance coupled plasma spectrometer in aqua regia medium. The determination range of gold, platinum and palladium is determined to be 0.014mg/L ~ 5mg/L, the recovery rate is 92.2%～104.4, RSD is 3.21%～10.58%. The method is suitable for the determination of gold, palladium and platinum elements in high nickel and copper liquid samples.