裂变^(99)Tc^m发生器洗脱液中α杂质的分离和测定

SEPARATION AND DETERMINATION OF ALPHA IMPURITIES IN THE ELUATES OF FISSION ^(99)Tc^m GENERATOR

介绍了用电沉积法分离^(99)Tc^m洗脱液中α放射性杂质,并在低本底α计数器上测定其活度的方法。电沉积回收率为62%。此法已用于裂变^(99)Tc^m发生器α核纯常规鉴定。

he pure beta emitting impurities in ￣(99)Tc￣m eluates of fission ￣(99)Tc￣m generator are separated by the ion exchange,activated charcoal adsorption and sulfate precipitate method and measured by low-levelbeta counter.The chemical yield is about 70%,This method has been used for routine appraisal of be-ta nuclide purity of the fission￣(99)Tc￣m generator eluates.