ICP-AES Determination of Platinum and Palladium in Ore Sample After Enrichment by Fire Assay

Platinum and palladium in ore Sample was enriched by fire assay method,and the precious metals alloy obtained was dissolved by nitric acid.The contents of platinum and palladium in the sample solution were determined by ICP-AES.Linear relationships between values of emission intensity and mass concentration of Pt and Pd were kept in the range within 30.0 mg·L-1.The proposed method was used in the analysis of a CRM (GBW 07342),the results obtained were in conformity with the standard values.