A highly effective method has been developed for the separation of silver traces from palladium based on the selective adsorption of the former on platinum surface. Authors separated 97 per cent of silver traces labelled with Ag111from palladium with the initial silver-palladium weight ratio being 10−8. The silver separated proved to be chemically free from palladium. Influence of the preliminary treatment of platinum on its adsorption capacity has been studied.