Detection of heavy metals in aqueous solution using PGNAA technique  

作　　者：Can Cheng Da-Qian Hei Wen-Bao Jia Zhou Jiang Hong-Tao Wang 

机构地区：[1]Department of Nuclear Science and Engineering,College of Materials Science and Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [2]Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,Suzhou 215000,China

出　　处：《Nuclear Science and Techniques》2016年第1期8-12,共5页核技术（英文）

基　　金：Supported by Priority Academic Program Development of the Jiangsu Higher Education Institution,National Key Scientific Instrument and Equipment Development Projects(No.2013YQ040861);National Natural Science Foundation of China(No.11375087)

摘　　要：A prompt gamma neutron activation analysis setup was developed for heavy metal detection in aqueous solutions with a 300 m Ci241Am-Be neutron source and a4 4 inch(diameter height) BGO detector. In the present work, heavy metals, including Mn, Cu, Ni, Cr and Zn, were measured by the setup. The minimum detectable concentrations of Mn, Cu, Ni, Cr and Zn were 246.6, 391.2, 218.1,301.5 and 2804.1 ppm, respectively. The minimum detectable concentration of each element and the linearity response between the characteristic peak counts and elements concentrations have been studied. And the results showed that all heavy metals had a good linear relationship between characteristic peak counts and concentrations.A prompt gamma neutron activation analysis setup was developed for heavy metal detection in aqueous solutions with a 300mCi 241Am-Be neutron source and a 4 × 4 inch （diameter x height） BGO detector. In the present work, heavy metals, including Mn, Cu, Ni, Cr and Zn, were measured by the setup. The minimum detectable concentra- tions of Mn, Cu, Ni, Cr and Zn were 246.6, 391.2, 218.1, 301.5 and 2804.1 ppm, respectively. The minimum detectable concentration of each element and the linearity response between the characteristic peak counts and ele- ments concentrations have been studied. And the results showed that all heavy metals had a good linear relationship between characteristic peak counts and concentrations.

关 键 词：重金属检测 水溶液 PGNAA 最低检出浓度 技术 BGO探测器 计数方法 分析装置 

分 类 号：X832[环境科学与工程—环境工程]