环境样品中铀同位素分析方法研究进展  

Research Progress on the Uranium Isotopes Analysis Methods in Environmental Samples

作　　者：李周[1] 李鹏翔[1] 马旭媛 张静[1] 韩玉虎[1] LI Zhou;LI Peng-xiang;MA Xu-yuan;ZHANG Jing;HAN Yu-hu(China Institute for Radiation Protection,Taiyuan 030006,China)

机构地区：[1]中国辐射防护研究院,太原030006

出　　处：《四川环境》2021年第5期262-268,共7页Sichuan Environment

摘　　要：从标准分析方法和公开发表文献方法两个方面出发,详细介绍和评述了不同环境介质中铀同位素的分析方法,从样品前处理、核素分离纯化以及测量手段等3个方面总结了国内外的研究进展,并展开了充分讨论。总的来说,固体样品的分析难度更大,要特别关注前处理过程的有效性;UTEVA树脂是当前先进的铀特效树脂,可在高精度分析要求的工作中发挥明显作用。当前国内在铀同位素分析方面仍存在如缺少标准分析方法、标准物质研发和制备能力不足、能力验证活动匮乏、特效材料依赖进口等问题,建议加快相关领域研发力度和产品推广。Based on the standard analysis methods and the published literature methods,the analytical methods of uranium isotopes in different environmental media are introduced and reviewed in detail from the three aspects of samples pretreatment,chemical separation and purification,and measurement methods,and full discussion was carried out.In general,the analysis of solid samples is more difficult,and special attention should be paid to the effectiveness of the pretreatment process;UTEVA resin is currently the advanced uranium specific resin,which can play an obvious role in the work required by high-precision analysis.At present,there are still some problems in uranium isotope analysis in China,such as lack of standard analysis methods,insufficient R&D and preparation capacity of standard materials,lack of capacity verification activities,dependence on import of special effect materials,etc.It is suggested to speed up R&D efforts and product promotion in related fields.

关 键 词：环境样品 铀同位素 分析方法 综述 

分 类 号：O6-1[理学—化学]