Abstract
Because of the high content of inactive molybdenum in the irradiated MoO 3, large generator columns containing alumina are needed to produce chromatographic (n,γ) 99Mo/ 99mTc generators. That results in large elution volumes containing relatively high Mo contents and low radioactive concentration on 99mTc. The present paper describes a system for concentration and purification of pertechnetate solutions involving steps of reduction, adsorption, reoxidation and elution which allows to improve the critical quality parameters of the pertechnetate solution in such a way that they meet the highest requirements.
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