期刊论文

中文

核化学与放射化学

0253-9950

2022

44

5

558-564

10.7538/hhx.2022.YX.2021071

中核集团集中研发项目（FA222512000206）；

本校为第一机构

~(237)Np属于高毒组核素,吸入人体后,会产生内照射危害。基于尿样中~(237)Np的分析测量既是常规监测的重要手段,也是研究职业工作人员人体~(237)Np剂量水平的关键方法,通过共沉淀预浓集,讨论了尿样中~(237)Np的前处理过程,系统地研究了TEVA萃取色谱树脂分离纯化和电沉积过程对~(237)Np化学回收率的影响。结果表明:该法对~(237)Np的化学回收率可达88.5%,方法检测限为2.55×10~(-5) Bq/L。该分析方法满足常规监测要求,适用于大体积尿样中~(237)Np的监测评价。

237Np is a highly toxic nuclide, which can cause internal exposure hazards after inhalation. The analysis of 237Np based on urine samples is an important method for routine monitoring, as well as a key method for studying the dose level of 237Np in the human body of professional workers. The pretreatment process of 237Np in large-volume urine samples, pre-concentration by co-precipitation, and the effect of TEVA resin separation and purification and electrodeposition on the chemical recovery of 237Np were systematically studied and discussed. T...