TY - JOUR ID - 473 TI - Preparation of Zirconium Molybdate Gel and Evaluation of its Physico-Chemical Characteristics Effects on 99mTc Generators Performances JO - Journal of Nuclear Science and Technology (JONSAT) JA - NST LA - en SN - 1735-1871 AU - Davarpanah, M.R AU - Attar Nosrati, S AU - Kazemi Boudani, M AU - Fazlali, M AU - Khoshhosn, H.A AU - Ghannadi Maragheh, M AD - Y1 - 2010 PY - 2010 VL - 30 IS - 4 SP - 21 EP - 28 KW - 99mTc Generators KW - Chromatographic Separation KW - Zirconium Molybdate KW - Technetium-99m DO - N2 - Zirconium molybdate gel has an excellent characteristic to be used as a column matrix material of 99mTc generators. The preparation conditions of zirconium molybdate gels will directly influence their physico-chemical characteristics and thus generator performances. In this work a series of zirconium molybdate gels were synthesized under different conditions and characterized by ICP, TGA, XRD and SEM Techniques. The effects of different parameters including pH of molybdate solution, Zr:Mo molar ratios, order of reactants addition, washing and granulating of gel on the performance of technetium-99m generators were evaluated. The experiments show that the optimum conditions for synthesis of the gel consist of: pH=4-4.5, Zr:Mo ratio of 1:1, gradual addition of molybdate solution to zirconium oxy chloride solution, no washing and grinding the resulted gel. UR - https://jonsat.nstri.ir/article_473.html L1 - https://jonsat.nstri.ir/article_473_67d953a3f9b5796fab7994831df264cf.pdf ER -