| Autor: |
Baluev, A. V., Mityakhina, V. S., Krasnikov, L. V., Galkin, B. Ya., Beznosyuk, V. I. |
| Předmět: |
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| Zdroj: |
Radiochemistry; Nov/Dec2003, Vol. 45 Issue 6, p616-619, 4p |
| Abstrakt: |
Recovery of 125Sb from metallic tin (∼96% enrichment with 124Sn) irradiated in a nuclear reactor (specific activity 5 mCi g-1) was studied. Irradiated tin was dissolved in concentrated HCl with addition of H2O2 or Br2; dissolution was monitored with 119mSn tracer. The separation of 125Sb and tin was studied using strongly basic (Dowex-50, AV-17), moderately basic (AN-2FN), and weakly basic (AN-31) anion exchangers with HCl, HCl + HBr, and HNO3 eluents. In the case of strongly basic anion exchangers, the separation coefficients of 125Sb from tin reached ∼104-105 in a single cycle. From for AN-31 weakly basic anion exchanger, tin was almost completely removed with 0.8 M HCl; the yields of tin and 125Sb were 99 and 98%, and the content of 125Sb in tin was no more than 0.1% of the initial activity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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