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    • 1. 发明授权
    • Method for preparing [F-18-]fluoride ion
    • [F-18-]氟离子的制备方法
    • US06190637B1
    • 2001-02-20
    • US09266603
    • 1999-03-11
    • Sento InoMasahiko TamuraOsamu Itoh
    • Sento InoMasahiko TamuraOsamu Itoh
    • A61K5100
    • G21G1/10C07B59/00G21G2001/0015
    • The present invention provides a method for preparing [F-18]-fluoride ion which comprises the step of bringing [O-18]-enriched water containing [F-18]-fluoride ion formed by proton irradiation of [O-18]-enriched water into contact with a strongly acidic cation exchange resin to remove impurity cations, the step of then bringing the [O-18]-enriched water containing [F-18]-fluoride ion treated above into contact with a weakly basic anion exchange resin to make [F-18]-fluoride ion adsorbed to the resin and, along therewith, to recover the [O-18]-enriched water which has passed through the resin, and the step of eluting and collecting the [F-18]-fluoride ion adsorbed to the weakly basic anion exchange resin. According to the method for preparing [F-18]-fluoride ion of the present invention, [F-18]-fluoride ion can be collected at a high collection efficiency even from a larger amount (about 2 ml or more) of [O-18]-enriched water containing [F-18]-fluoride ion than the amount in prior method, and moreover expensive [O-18]-enriched water can be recovered and reused in the preparation of [F-18]-fluoride ion.
    • 本发明提供了制备[F-18] - 氟化物离子的方法,该方法包括使含有[O-18] - 氟化物离子的[O-18] - 含氟[ 富含水与强酸性阳离子交换树脂接触以除去杂质阳离子,然后将含有上述[F-18] - 氟化物离子的[O-18]富含水的水溶液与弱碱性阴离子交换树脂接触的步骤 使[F-18] - 氟化物离子吸附到树脂上,并与其一起回收已经通过树脂的[O-18]富含水,以及洗脱和收集[F-18] 氟离子吸附到弱碱性阴离子交换树脂上。 根据本发明的[F-18] - 氟化物离子的制备方法,即使从大量(约2ml以上)的[O -18]富含[F-18] - 氟离子的富含水的水,而且[F-18] - 氟化物离子的制备中可以回收并重复使用富含[O-18]的富含水的[F-18] 。