常量元素Hf的分离纯化方法较多,有沉淀法、挥发法等,它们对W、Ta、Zr等元素的去污效果较好。就痕量元素Hf的分离纯化而言,传统方法不合用,只能采用离子交换法。为研究Hf的分离纯化方法,制备了175Hf(70d)、187W(23.72h)、182Ta(114.43d)3种示踪剂,采用强碱型阴离子交换树脂柱对 There are many methods to separate and purify Hf, such as precipitation method, volatilization method, etc. They have good decontamination effect on W, Ta, Zr and other elements. For the separation and purification of trace elements Hf, the traditional method is not used, can only use ion exchange method. In order to study the separation and purification of Hf, three kinds of tracers, 175Hf (70d), 187W (23.72h) and 182Ta (114.43d), were prepared using strong base anion exchange resin column