Role of Redox-Potential in the Separation of ~99Mo/~99mTc in Chromatographic Systems

摘要

Chromatographic separation of the ~99mTc daughter element from its "Mo mother one is based on the fact that in certain pH ranges oligomer ions of the molybdenum are formed by assembling 7 to 8 individual ions which can be bound more strongly on the chromatographic column than single ions of the technetium. However oligomer ions can be developed only in the highest oxidation valence of the molybdenum. Consequently to seperate the daughter element from its mother one with high efficiency an appropriate redox-potential of the isotope mixture should be developed and maintained.