High-level wastes contain significant quantities of platinum group metals such as palladium, ruthenium, and rhodium. These metals are used for catalytic process, electronic and electrochemical industries, anti-corrosion alloys, dental applications etc. The demand of noble metals continues to grow in a steady manner. Many techniques for separation of the platinum group metals have been studied. In this study, the precipitation characteristics of Pd(II) by ascorbic acid in a simulated platinum metal solutions was investigated.