Abstract
Various methods have been developed for the extraction of a promising medical radionuclide 117mSn from proton-irradiated TiSb intermetallic compound, a target material suitable for irradiation with an intense beam of accelerated protons. To separate radiotin from Ti, Sb, and radionuclides of other elements, methods of ion-exchange chromatography and liquid extraction were used, in particular, the anion-exchange separation of tin and titanium in the form of a peroxide complex in HCl solution, extraction of tin with benzene from iodide solutions, and chromatographic purification on silica gel from citrate solutions. As a result, 117mSn of high purity, which meets the requirements for nuclear medicine, was obtained.
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ACKNOWLEDGMENTS
The study was carried out using the equipment of the Center for Collective Use “Accelerator Center for Neutron Research of the Structure of Matter and Nuclear Medicine, INR RAS”.
The authors are especially grateful to Prof. Suresh Srivastava of Brookhaven National Laboratory (USA) for initiating this work and important recommendations. The authors are also grateful to N.R. Togaeva (A.I. Leipunsky Institute of Physics and Power Engineering) for help in this study, as well as A.N. Vasiliev (INR RAS) for useful discussions.
Funding
The study was supported by the US Department of Energy’s Initiative for Proliferation Prevention Program # BNL-T2-324.
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Translated from Radiokhimiya, No. 6, pp. 559–571, December, 2021 https://doi.org/10.31857/S0033831121060083
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Lapshina, E.V., Ermolaev, S.V. & Zhuikov, B.L. Isolation of 117mSn from Proton-irradiated Titanium–Antimony Intermetallic Compound. Radiochemistry 63, 788–800 (2021). https://doi.org/10.1134/S1066362221060114
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DOI: https://doi.org/10.1134/S1066362221060114