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Determination of iodine-129 in twenty soil and sediment reference materials

文献类型：期刊论文

作者Zhang, Luyuan1,2,3; Fang, Miao1,4; Zhang, Tong1,5; Jiang, Huan1,5; Zhang, Mengting1,4; Hou, Xiaolin1,2,3
刊名JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
出版日期2021-05-25
页码10
ISSN号0267-9477
DOI10.1039/d1ja00061f
通讯作者Zhang, Luyuan(zhangluyuan.118@163.com)
英文摘要Increasing attention has been paid to I-129 in soils and sediments for the purpose of environmental radioactivity monitoring, and understanding historic nuclear activities and their impacts. Accurate measurement of I-129 is vital, which greatly increases the requirement of various certified reference materials (CRMs). However, only a few CRMs with low levels of I-129 are available for accurate determination of I-129 in samples remote from nuclear sites and facilities. Here, this work investigated the concentrations of I-129 and I-127, and I-129/I-127 atomic ratios in twenty Chinese soil and sediment CRMs commercially available, as well as one in-house soil standard material (XASTD), with high-temperature pyrolysis combustion coupled with ICP-MS and accelerator mass spectrometry (AMS) measurements. This study demonstrates that I-129 concentrations in the twenty CRMs and one laboratory soil standard range from 0.31 x 10(6) atoms per g to 34.7 x 10(6) atoms per g, which were 1-4 orders of magnitude lower than those of the reference materials in use. For accurate measurement of I-129, the effect of salinity content in the samples on the iodine current intensity of the AMS measurement is firstly discussed. Significant salinity effect occurred when a high-salinity sample is analysed, which is likely due to the formation of abundant strong oxidants during the pyrolysis process, resulting in the existence of iodine as iodate instead of iodide. And finally, an analytical procedure is recommended for the low- and high-salinity soil and sediment samples. In summary, the reported data of the CRMs and the laboratory in-house control soil standard would broaden the group of available reference materials, be useful for method development of low-level I-129 samples, interlaboratory comparison and short- and long-term quality control, as well as extend I-129 applications in geological, environmental and nuclear sciences.
WOS关键词ACCELERATOR MASS-SPECTROMETRY ; ARCTIC-OCEAN ; IODINE ; AEROSOLS ; BROMINE ; SAMPLES ; LEVEL ; SPECIATION ; CHLORINE ; U-236
资助项目West Light Foundation ; Youth Innovation Promotion Association[2019401] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[41991252] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0602]
WOS研究方向Chemistry ; Spectroscopy
语种英语
WOS记录号WOS:000661589500001
出版者ROYAL SOC CHEMISTRY
资助机构West Light Foundation ; Youth Innovation Promotion Association ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program
源URL[http://ir.ieecas.cn/handle/361006/16756]  
专题地球环境研究所_加速器质谱中心
第四纪科学与全球变化卓越创新中心
通讯作者Zhang, Luyuan
作者单位1.Chinese Acad Sci, Inst Earth Environm, Xian AMS Ctr,State Key Lab Loess & Quaternary Geo, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Xian Inst Innovat Earth Environm Res, Xian 710061, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Luyuan,Fang, Miao,Zhang, Tong,et al. Determination of iodine-129 in twenty soil and sediment reference materials[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2021:10.
APA Zhang, Luyuan,Fang, Miao,Zhang, Tong,Jiang, Huan,Zhang, Mengting,&Hou, Xiaolin.(2021).Determination of iodine-129 in twenty soil and sediment reference materials.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,10.
MLA Zhang, Luyuan,et al."Determination of iodine-129 in twenty soil and sediment reference materials".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2021):10.

入库方式： OAI收割

来源：地球环境研究所

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