一种快速放化分离72Ga的方法

摘要

以 Fe(OH)3沉淀和异丙醚萃取为主要分离方法,建立了一种简单、有效的快速放化分离微量72 Ga 的流程。流程对 Ga 的化学回收率大于90%,对裂变产物元素的去污因子均大于103,对土壤基体的去污因子为4.1×103,分离时间小于50 min,可以满足快速放化分离72 Ga 的需求。%A simple,effective and rapid chemical procedure for separating 72 Ga from a mixed sample of soil has been developed,by using NaOH precipitation and isopropyl ether extrac-tion.The chemical recovery is greater than 90%.The decontamination factors of fission products are greater than 10 3 ,and the decontamination factor of soil matrix is 4.1×10 3 .The total time of the whole procedure is less than 50 min,then the method can meet the require-ment of the detection of 72 Ga.