Application of Anion Exchange Method in the Purification of~(99)Mo

The distribution coefficient of~(99)Mo is determinated in NH_4OH, NaOH, HNO_3 solution at different temperature. The effect of temperature and alkali concentration is studied. The amount of~(99)Mo eluted by NaOH and HNO_3 elution is determinated. The results show that~(99)Mo does not breakthrough the column as the loading solution passes through the 717 column; and more than 90.6% of~(99)Mo can be eluted by 200 mL 3 mol/L HNO_3, and 99.8% by 0.5 mol/L NaOH-0.5 mol/L NaNO_3 (elution.)