Pertechnetate anions, removal from

Hall and Hohns have found that 10 /ig of technetiiun can be separated quantitatively from as much as 50 g of molybdenum using the Amberlite IRA-400 anion exchange resin in the perchlorate form. The irradiated metal is dissolved in a NaOH/HjOj mixture and the solution passed through the column. Molybdate is removed by elution with 10% NaOH solution pertechnetate is eluted with 0.5 M NH4SCN. 

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