68Ge-68Ga发生器吸附剂SnO2的制备

⁶⁸Ge-⁶⁸Ga发生器吸附剂SnO₂的制备

摘要: 为制备适用于⁶⁸Ge-⁶⁸Ga发生器的吸附剂，用热HNO₃氧化金属锡制备SnO₂，对SnO₂吸附剂的制备工艺及其性能进行了研究。制备得到以SnO₂作为吸附剂的⁶⁸Ge-⁶⁸Ga发生器，并对其吸附行为与淋洗效率进行了研究。结果表明，600℃高温焙烧获得的SnO₂适于用作⁶⁸Ge-⁶⁸Ga发生器的吸附剂，其对⁶⁸Ge有较好的选择性吸附，用8mL 1mol/L HCl淋洗，⁶⁸Ga的淋洗效率为60%～80%，⁶⁸Ge的漏穿率大部分为10^-3%量级。

Abstract: For preparing the absorbent of ⁶⁸Ge-⁶⁸Ga generator, SnO₂ was prepared with metal tin and hot HNO₃. The process and characters of SnO₂ were studied. The features of adsorption and elution of ⁶⁸Ge-⁶⁸Ga generator with SnO₂as the absorbent were also studied. The results indicate that SnO₂ after heated at 600℃ is suitable as absorbent for ⁶⁸Ge-⁶⁸Ga generator, and it has good selective adsorption to ⁶⁸Ge. The ⁶⁸Ga yield is 60%-80% with 8mL of 1mol/L HCl as the eluent, and the ⁶⁸Ge breakthrough is most a magnitude of 10^-3%.