加速器质谱测量海水中^(239)Pu  

Measurement of ultra-trace level^(239)Pu in seawater samplesby accelerator mass spectrometry

作　　者：邬蒙蒙[1] 尹云云 郭庐阵[1] 吕天林 汪传高[1] 庞洪超[1] WU Mengmeng;YIN Yunyun;GUO Luzhen;LV Tianlin;WANG Chuangao;PANG Hongchao(China Institute of Atomic Energy,Beijing 102413)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《辐射防护》2025年第2期133-140,共8页Radiation Protection

摘　　要：采用中国原子能科学研究院自主研制的加速器质谱(AMS)系统对海水中^(239)Pu进行测量,用阴离子树脂对样品中^(239)Pu进行了分离纯化、氢氧化铁共沉淀法制备测量使用靶样品。制备一组自来水样品作为空白样品得到测量方法的检出限为0.9 fg(2.0μBq),对实际海水样品中^(239)Pu进行了测量和分析,并对测量方法的不确定度进行了分析。^(239)Pu in seawater was measured by accelerator mass spectrometry(AMS)system independently developed by China Institute of Atomic Energy.The^(239)Pu in seawater samples was separated and purified by anion resin,and the target samples were prepared by ferric hydroxide co-precipitation method.A set of tap water samples was prepared as blank samples to evaluate the measurement method with a detection limit of 0.9 fg(2.0μBq).By this method,^(239)Pu in seawater samples was measured and analyzed.And the uncertainty of the measurement method was analyzed.

关 键 词：加速器质谱 海水 放射性测量 ^(239)Pu 

分 类 号：X837[环境科学与工程—环境工程]