萃取色层法分析废树脂中的<sup>55</sup>Fe

萃取色层法分析废树脂中的⁵⁵Fe

摘要: 为了获得低放废物处置过程中重点关注放射性核素的活度浓度信息，选择TRU树脂作为分离纯化材料，结合液闪测量法，建立了废树脂样品中⁵⁵Fe的快速分析方法。该方法Fe的化学回收率为87.23%，最小可探测比活度为11.43 mBq/g。

Abstract: In order to obtain the radioactivity concentration information of the nuclides in the process of disposal of low level waste, an analytical method for the determination of ⁵⁵Fe in spent ion-exchange resin was established by using TRU resin as the separation and purification material and liquid scintillation spectrometry method. The chemical recovery of Fe for this method is approximately 87.23%, and the minimum detectable specific activity is approximately 11.43 mBq/g.