Ruthenium,rhodium,osmium,and iridium have excellent physical and chemical properties,and thus become indispensable key materials in the hightech and industrial sectors.In this experiment,the determination of ruthenium,rhodium,osmium,and iridium elements in selenium and tellurium-containing materials was carried out using lead fire assay enrichment-ICP-OES,that is,dissolving the material in concentrated sulfuric acid to remove selenium and tellurium,adding a certain amount of silver,obtaining silver alloy grains through lead fire assay enrichment,dissolving the silver alloy grains with nitric acid for silver separation,melting the residue after filtration with sodium hydroxide and sodium chloride at high temperature,then dissolving it with concentrated hydrochloric acid,and determining it with ICP-OES.The experiment optimized the amount of silver added,melting temperature,cupellation temperature,the amount of sodium hydroxide and sodium chloride added,and instrument parameters to determine the optimal experimental conditions.The relative standard deviations for the determination of ruthenium,rhodium,osmium,and iridium in selenium and tellurium-containing materials using this method were 0.29 %-1.01 %,the spike recovery rates were 96.36 %-105.77 %,and the precision and accuracy met the requirements of analysis and testing.