Determining rare-earth elements in aqueous solutions using PGNAA technology

被引：4

作者：

Ling, Yongsheng ^{[1
,2
,6
]}

Chen, Jianwen ^{[1
]}

Cai, Pingkun ^{[1
]}

Jia, Wenbao ^{[1
,2
]}

Hei, Daqian ^{[2
,3
,6
]}

Li, Jiatong ^{[4
]}

Cheng, Can ^{[1
,5
]}

Shan, Qing ^{[1
,2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Dept Nucl Sci & Technol, Nanjing 211106, Peoples R China

[2] Collaborat Innovat Ctr Radiat Med Jiangsu Higher, Suzhou 215000, Peoples R China

[3] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[4] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

[5] Nanjing Univ Aeronaut & Astronaut, Coll Astronaut, Nanjing 211106, Peoples R China

[6] Inst Zhongnan Lanxin Nanjing Radiat Technol, Nanjing 211316, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2022年 / 331卷 / 02期

基金：

美国国家科学基金会;

关键词：

Rare-earth elements (REEs); Monte carlo simulation; PGNAA; MDC; Neutron self-shielding correction; HEAVY-METALS; DESIGN;

D O I：

10.1007/s10967-021-08175-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A PGNAA set-up consisting of a Am-241-Be neutron source and a HPGe detector was proposed to determine rare-earth elements in leachate during infiltration process, and was conducted to analyze samples containing gadolinium, samarium, and neodymium. A good agreement between the experimental net peak areas and the MCNP simulated ones was observed. The net peak areas of gadolinium, samarium, and neodymium versus their corresponding masses were then analyzed. The results showed linear dependences after neutron self-shielding correction, and the minimum detectable concentrations were 27.94 mg/L (Gd), 4.77 mg /L (Sm) and 1077 mg/L (Nd), respectively.

引用

页码：1101 / 1108

页数：8

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