Separation of curium and americium traces by displacement complexing chromatography in the presence of separating ions: 3. Influence of the nature ofholding ion on separation of curium and americium during elution with nitrilotriacetic acid solution

The efficiency of separation of curium and americium by elution with a nitr ilotriacetic acid solution was studied as influenced by the nature of holdi ng ion (Ni, Zn). The use of the Zn form of KU-2 resin instead of the Ni for m considerably deteriorates the quality of separation of curium from americ ium. To reach the complete separation on the Zn form, the greater number of separation bands and the smaller amount of cadmium introduced into the sys tem are required.