环境土壤中痕量90Sr的分析方法研究进展  

Advances in Analytical Methods of Trace 90Sr in Environmental Soils

作　　者：杨军强[1,2] 邢闪[1,2] 王倩 胡克生 史克亮 侯小琳[1,2] 吴王锁 YANG Jun-qiang;XING Shan;WANG Qian;HU Ke-sheng;SHI Ke-liang;HOU Xiao-lin;WU Wang-suo(Frontier Science Center for Rare Isotopes,Lanzhou University,Lanzhou 730000,China;School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]兰州大学稀有同位素前沿科学中心,甘肃兰州730000 [2]兰州大学核科学与技术学院,甘肃兰州730000

出　　处：《分析测试学报》2024年第10期1574-1588,共15页Journal of Instrumental Analysis

基　　金：国家自然科学基金(22341603)。

摘　　要：90Sr因裂变产额高、半衰期较长、高毒性及生物亲骨性等,是环境辐射危害评价中重点关注的裂片核素之一,其环境行为备受关注。作为重要的生态系统组成,土壤连接水体、植物、大气等环境介质,是释放到环境中的放射性核素再富集的重要渠道,开展对土壤中90Sr含量的准确分析,是环境放射性安全评估的重点任务之一,对深入理解90Sr的环境行为具有重要意义。该文通过综述近年来国内外环境土壤中90Sr的分析方法,主要总结了环境样品前处理、化学分离纯化以及仪器测量、分析方法自动化等方面的最新进展,同时对未来环境土壤中痕量90Sr准确分析进行了展望。90Sr is one of the fission products of significant concern in environmental radiation hazard assessment due to its high fission yield,long half-life,high toxicity and biological affinity for bones.Its environmental behavior is of great interest.As a crucial component of the ecosystem,soil acts as a link between water bodies,plants and the atmosphere,serving as a major pathway for the re-con⁃centration of radioactive nuclides released into the environment.Accurate analysis of 90Sr content in soil is a key task in environmental radiation safety assessment and is crucial for a deeper understand⁃ing of the environmental behavior of 90Sr.This paper reviews recent advancements in the analysis methods of 90Sr in environmental soil both domestically and internationally.It summarizes the latest progress in sample pretreatment,chemical separation and purification,instrumental measurement,and the automation of analytical methods.Additionally,it provides an outlook on the future pros⁃pects for the accurate analysis of trace amounts of 90Sr in environmental soil.

关 键 词：90Sr 土壤样品 分析方法 综述 

分 类 号：O657[理学—分析化学] X132[理学—化学]