摘要
在我国当前核电事业高速发展的背景下,需要建立不同区域的^(135)Cs背景数据,另外^(135)Cs/^(137)Cs原子比的测试分析及其示踪研究也亟待加强.为此,笔者对已有的文献资料进行归纳总结,首先对^(135)Cs的来源、化学分离与提取和仪器分析3个方面进行了详细的阐述,对阳离子交换树脂和萃取树脂、质谱测量技术(ICP-MS、TIMS、RIMS和AMS)以及得到的探测限和回收率的加以比较,并重点围绕福岛核事故探讨了^(135)Cs/^(137)Cs原子比在环境中的应用,展望了未来^(135)Cs的分析测试及应用研究的发展前景,为环境样品中^(135)Cs的精确测量、迁移行为以及^(135)Cs/^(137)Cs原子比的示踪研究提供重要参考.
Under the background of rapid development in nuclear power,strengthen the knowledge of135Cs analysis and application is extremely necessary.Therefore,based on published literatures and materials,the source term and instrumental analysis of135Cs were summarized and addressed.Different chemical separation methods and mass spectrometry techniques(ICP-MS,TIMS,RIMS and AMS)for radiocesium determination were compared in this review.In addition,the obtained limit of detection and chemical yield in reported papers were also compared.Finally,we discussed the potential application of135Cs/137Cs isotopic ratio in the environment with emphasis on Fukushima nuclear accident and prospects in accurate determination,migration behavior and application of135Cs/137Cs isotopic ratio for future research.
作者
曹立国
郑建
潘少明
肖德涛
CAO Li-guo;ZHENG Jian;PAN Shao-ming;XIAO De-tao(School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023 China;School of Geography and Tourism, Shaannxi Normal University, Xi’an 710119, China;Research Center of Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan;School of Nuclear Science and Technology, University of South China, Hengyang 421001, China)
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2017年第7期2731-2739,共9页
China Environmental Science
基金
国家自然科学基金面上项目(41671466)
国家重点研发计划项目(2016YFA0600502)
关键词
135Cs
示踪应用
化学分离
质谱分析
135Cs
tracer application
chemical separation
mass spectrometry analysis
