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  • Title: Zirconium molybdate gel as a generator for technetium-99m--I. The concept and its evaluation.
    Author: Evans JV, Moore PW, Shying ME, Sodeau JM.
    Journal: Int J Rad Appl Instrum A; 1987; 38(1):19-23. PubMed ID: 3030964.
    Abstract:
    A new 99mTc generator for the preparation of radiopharmaceuticals has been developed. Its elution characteristics and chemical stability merit its consideration as a replacement for present generators. The 99Mo is present as a zirconium molybdate gel, the high molybdate content of which allows the use of (n, gamma) 99Mo. The resulting generator is as effective and as convenient to use as chromatographic generators that are based on fission product 99Mo. Laboratory evaluations of the concept at low levels of radioactivity described in this paper show that the gel can be prepared in a form which is stable when used in a generator and from which TcO4- can be eluted in yields of 80-85%. The influence of formulation variables on gel properties was established. The performance of this generator using 99Mo with specific activities between 4 and 13 GBq g-1 is described in a further paper.
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