Rapid Analysis of I-129 in Natural Water Samples Using Accelerator Mass Spectrometry

doi:10.46770/AS.2021.071

	Rapid Analysis of I-129 in Natural Water Samples Using Accelerator Mass Spectrometry
	Zhang, Mengting 1,5; Hou, Xiaolin 1,3,5; Zhang, Zhiyong 2; Zhang, Luyuan 1,4; Chen, Ning 1; Fang, Miao 1,5
刊名	ATOMIC SPECTROSCOPY
	2021-07-01
卷号	42 期号:4 页码:190-196
ISSN号	0195-5373
DOI	10.46770/AS.2021.071
通讯作者	Hou, Xiaolin(xiho@env.dtu.dk) ; Zhang, Zhiyong(zhangzhy@ihep.ac.cn)
英文摘要	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.
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关键词	VOLATILE ORGANIC-COMPOUNDS ; ANTHROPOGENIC I-129 ; SPECIATION ANALYSIS ; SURFACE WATERS ; IODINE ; SEAWATER ; I-129/I-127 ; LEVEL ; PRECIPITATION ; CARBON
WOS研究方向	Spectroscopy
语种	英语
出版者	ATOMIC SPECTROSCOPY PRESS LTD
WOS记录号	WOS:000661434600004
资助机构	Key Research Program of the Chinese Academy Sciences ; Chinese Academy of Sciences ; Ministry of Science and Technology of China ; Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16768]
专题	地球环境研究所_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.