怎样做大白鼠的甲状腺吸~(131)碘率?曾见有人由腹腔注射给~(131)碘,动物用乙醚全麻后固定,用盖革氏计数管探测,很觉不便和数值误差较大,故对测定方法做了改进:将做放免用的 FT-603井型γ闪烁探头去掉上层铅室,盖上4厘米厚的铅砖,铅砖中间正对探头晶体开2×3厘米小窗,等于用了圆柱 How to do the rat thyroid suction ~ (131) iodine rate? It has been observed by the intraperitoneal injection of ~ (131) iodine, animals fixed with ether anesthesia, with Geiger counter tube detection, I feel inconvenience and numerical error than Therefore, the measurement method was improved: FT-603 well-type γ-scintillation probe which is to be exempted will be taken out of the upper lead chamber, covered with 4 cm thick lead brick, and the center of the lead brick shall be 2 × 3 cm Window, equal to the cylinder