Separation of 221Fr from 225Ac using diglycolamide solid extractants
This work is focused on the separation of a daughter radionuclide 221Fr from medicinal 225Ac to provide a source of pure 221Fr fraction for other studies. To achieve such a goal, diglycolamide extraction agents were immobilized on polymer matrix and tested in extraction chromatography experiments. Particularly experiments with N,N,N´,N´ tetrakis 2-ethylhexyldiglycolamide in nitric acid medium provided promising results and the material was further studied in column experiments. The chosen conditions of separation provided 221Fr in yields over 65 % with 225Ac contamination under 1 % in less than 5 minutes, which is a sufficient proof of concept suitable for further studies.
FIALOVA Katerina;
ONDRAK Lukas;
SAKMAR Michal;
VLK M.;
BRUCHERTSEIFER Frank;
MORGENSTERN Alfred;
KOZEMPEL J.;
2023-06-29
SPRINGER
JRC129871
0236-5731 (online),
https://link.springer.com/article/10.1007/s10967-022-08571-z,
https://publications.jrc.ec.europa.eu/repository/handle/JRC129871,
10.1007/s10967-022-08571-z (online),
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