基于固相萃取片的应急状态下水中锶-90快速测定方法研究  

Study on Rapid Determination of Strontium-90 in Water by Solid Phase Extraction Disk in Emergency

作　　者：方春鸣 姜冬 陆地 胡建文 FANG Chunming;JIANG Dong;LU Di;HU Jianwen(Shandong Nuclear Power Co.,Ltd,Yantai 265100,China;Yantai Customs Technology Center,Yantai 264000,China;Beijing LabTech Instruments Co.,Ltd.Beijing 101300,China)

机构地区：[1]山东核电有限公司,烟台265100 [2]烟台海关技术中心,烟台264000 [3]北京莱伯泰科仪器股份有限公司,北京101300

出　　处：《核电子学与探测技术》2023年第4期725-728,共4页Nuclear Electronics & Detection Technology

摘　　要：建立了一种基于固相萃取片的应急状态下水中锶-90快速分析测量方法。1.00 L水样品经酸化处理后使用锶固相萃取片过滤,再使用低本底α/β计数器测量萃取片上锶-90的计数,同时对相关测量条件进行分析研究,提出了解决钇-90和锶-89对锶-90测量产生干扰的方法。本方法操作简单,化学回收率稳定,典型条件下方法探测下限为0.019 Bq/L,整个实验过程约2小时,适合应急情况下水中锶-90的快速测定。A rapid analysis and measurement method of strontium 90 in water based on solid phase extraction disk under emergency conditions is established.After the water sample passes through the strontium solid phase extraction tablet,the low background is directly usedα/β.The counter is used to measure,the relevant measurement conditions are analyzed and studied,and the solutions to the interference of Y-90 and Sr-89 are proposed.This method is simple in operation and stable in chemical recovery.The whole experimental measurement process does not exceed 2 hours.The lower detection limit of the method is 0.019 Bq/L.It is especially suitable for the rapid determination of strontium 90 in water under emergency conditions.

关 键 词：水样品 锶-89 锶-90 锶固相萃取片 

分 类 号：O63[理学—高分子化学]