Abstract
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´tetrakis2-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 min, which is a sufficient proof of concept suitable for further studies.
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Acknowledgements
This work was supported by Technology Agency of The Czech Republic (TJ04000129) and Czech Technical University (SGS22/188/OHK4/3T/14).
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Fialová, K., Ondrák, L., Sakmár, M. et al. Separation of 221Fr from 225Ac using diglycolamide solid extractants. J Radioanal Nucl Chem 332, 1483–1488 (2023). https://doi.org/10.1007/s10967-022-08571-z
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DOI: https://doi.org/10.1007/s10967-022-08571-z