【摘要】 研究了不同时间间隔淋洗６８Ｇｅ－６８Ｇａ发生器时，６８Ｇａ的淋洗曲线、淋洗效率、６８Ｇｅ的穿透率、流出液中的Ｓｎ含量及温度对６８Ｇａ淋洗效率的影响。实验结果表明，用１ｍｏｌ／ＬＨＣｌ淋洗以ＳｎＯ２为吸附剂的６８Ｇｅ－６８Ｇａ发生器，每次淋洗间隔时间１－１４天不等，历经半年时间的淋洗，６８Ｇｅ的穿透率保持在１０－７数量级，淋洗液中的Ｓｎ含量保持在４×１０－７以下。６８Ｇａ淋洗曲线的形状未发生变化，６８Ｇａ的淋洗效率为５５％—７５％，淋洗时间间隔变化不影响淋洗效率，温度对淋洗效率有较大影响。更多还原

【Abstract】 The stability of the isotope generator of 68 Ge 68 Ga,including the elution curve of 68 Ga,elution efficiency of 68 Ga,breakthrough of 68 Ge and the concentration of Sn in the elute are studied.The generator is eluted by 1 mol/L HCl at varying intervals from one day to fourteen days.The adsorbent of the generator is SnO 2.Based on the elutions in a half year,these data are obtained:breakthrough of 68 Ge is in the order of 10 -7 ,the concentration of Sn in the elute is less than 4×10 -7 ,the shape of the elution curve of 68 Ga is unchanged,but the elution efficiency of 68 Ga is varied from 55% to 75%. It is found that the varying elution interval does not change the elution efficiency of 68 Ga and varying elution efficiency is caused by varying temperature.更多还原