- P-ISSN 1225-0163
- E-ISSN 2288-8985
This paper presents a quantitative method of sequential separation of 90Sr, 241Am and Pu radionuclides with an anion exchange resin and a Sr-Spec resin. The Pu isotopes were purified with an anion exchange resin. The americium and strontium fractions were separated from the matrix elements with an oxalate co-precipitation method. Americium fraction was separated from the strontium fraction with iron co-precipitation method and purified from lanthanides with anion exchange resin. Strontium-90 was purified from other hindrance elements with the Sr-Spec resin after oxalate co-precipitation. The measurement of Pu and Am isotopes was carried out by an α-spectrometer. Strontium-90 was measured by a liquid scintillation counter. The radiochemical procedure of 90Sr, 241Am and Pu radionuclides investigated in this study has been validated by application to IAEAReference soils.