Rapid Analysis of I-129 in Natural Water Samples Using Accelerator Mass Spectrometry | |
Zhang, Mengting1,5; Hou, Xiaolin1,3,5; Zhang, Zhiyong2; Zhang, Luyuan1,4; Chen, Ning1; Fang, Miao1,5 | |
通讯作者 | Hou, Xiaolin(xiho@env.dtu.dk) ; Zhang, Zhiyong(zhangzhy@ihep.ac.cn) |
2021-07-01 | |
发表期刊 | ATOMIC SPECTROSCOPY |
ISSN | 0195-5373 |
卷号 | 42期号:4页码:190-196 |
摘要 | A rapid and simple co-precipitation method for iodine separation from natural samples was developed for determination of I-129 using accelerator mass spectrometry (AMS). The method includes three steps, i.e. decomposition of organic iodine, iodine separation and target preparation using co-precipitation, and sensitive measurement of I-129/I-127 ratio using AMS. The recovery of iodine was higher than 90% for most natural water samples in the decomposition step using K2S2O8. Iodine in the digested sample was then co-precipitated as AgI-AgCl-Ag2SO3-Ag2SO4 with a typical recovery of 95-98%. It was observed that addition of 0.2 mg I-127 carrier can significantly improve the measurement uncertainty of low-level 129I samples by enhancing iodine ion current. The overall recovery of iodine in the entire procedure was higher than 80%, and a detection limit of 1.0x10(5) atoms (or 2.2x10(-17) g) for I-129 was achieved. The developed method was validated by certified reference material (IAEA-418) and five types of natural water samples in comparison with results using the conventional solvent extraction method. Analytical results showed good agreement with the reference values for all samples, confirming the reliability of the developed method. The simple operation, with no need for organic solvent and small amount of iodine carrier addition make the developed method suitable for rapid and reliable determination of low level I-129 in natural water samples. |
DOI | 10.46770/AS.2021.071 |
关键词[WOS] | VOLATILE ORGANIC-COMPOUNDS ; ANTHROPOGENIC I-129 ; SPECIATION ANALYSIS ; SURFACE WATERS ; IODINE ; SEAWATER ; I-129/I-127 ; LEVEL ; PRECIPITATION ; CARBON |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | Key Research Program of the Chinese Academy Sciences[ZDRW-CN-2018-1] ; Chinese Academy of Sciences[132B61KYSB20180003] ; Chinese Academy of Sciences[XDB40020400] ; Ministry of Science and Technology of China[2015FY110800] ; Natural Science Foundation of China[11875261] ; Natural Science Foundation of China[91643206] |
WOS研究方向 | Spectroscopy |
项目资助者 | Key Research Program of the Chinese Academy Sciences ; Chinese Academy of Sciences ; Ministry of Science and Technology of China ; Natural Science Foundation of China |
WOS类目 | Spectroscopy |
WOS记录号 | WOS:000661434600004 |
出版者 | ATOMIC SPECTROSCOPY PRESS LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/16769 |
专题 | 加速器质谱中心 |
通讯作者 | Hou, Xiaolin; Zhang, Zhiyong |
作者单位 | 1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, AMS Ctr IEECAS,Inst Earth Environm, Xian 710061, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Tech Univ Denmark, Dept Environm Engn, Riso Campus, DK-4000 Roskilde, Denmark 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Mengting,Hou, Xiaolin,Zhang, Zhiyong,et al. Rapid Analysis of I-129 in Natural Water Samples Using Accelerator Mass Spectrometry[J]. ATOMIC SPECTROSCOPY,2021,42(4):190-196. |
APA | Zhang, Mengting,Hou, Xiaolin,Zhang, Zhiyong,Zhang, Luyuan,Chen, Ning,&Fang, Miao.(2021).Rapid Analysis of I-129 in Natural Water Samples Using Accelerator Mass Spectrometry.ATOMIC SPECTROSCOPY,42(4),190-196. |
MLA | Zhang, Mengting,et al."Rapid Analysis of I-129 in Natural Water Samples Using Accelerator Mass Spectrometry".ATOMIC SPECTROSCOPY 42.4(2021):190-196. |
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