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A procedure is described for isolation and purification of 225Ac as a 229Th daughter decay product using ion exchange. The process includes the following steps: separation of 229Th from a mixture of 225Ac and 225Ra (225Ac precursor) using an anion-exchange resin; separation of 225Ac and 225Ra using a cation-exchange resin; purification of 225Ac to remove inactive impurity cations (primarily Fe) using...
A procedure for isolation and purification of 224Ra as daughter decay product of 228Th decay using KRF-20t-60 resin is described. The experimental data on the isolation of 224Ra and the technical characteristics of the final product are described.
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