Study on the Separation of Carrier-Free Yttrium-90 from Strontium-90
- 1 January 1991
- journal article
- research article
- Published by Taylor & Francis in Isotopenpraxis Isotopes in Environmental and Health Studies
- Vol. 27 (6) , 269-273
- https://doi.org/10.1080/10256019108622539
Abstract
The separation of carrier-free 90Y from 90Sr by solvent extraction with di-(2-ethylhexyl) phosphoric acid (HDEHP) in dodecane has been investigated in this study. The extraction equilibrium time, the effect of temperature, concentration of extractant, and hydrochloric acid concentration on this extraction system were examined. Based on the studies, the chemical procedure for the separation of carrier-free 90 Y from its parent 90Sr have been established. The chemical yield of 90Y is about 80%. Meanwhile, the 90Sr impurity is less than 1×10−6% and the trace of extractant presented in the final product can be removed by fumed with HNO3. Consequently, the preparation of millicurie of 90Y is quite satisfactory for the adsorption in microsphere resin for radiotherapy applications.Keywords
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