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Determination of Low Level 129I in Soil Samples Using Coprecipitation Separation of Carrier Free Iodine and Accelerator Mass Spectrometry Measurement
Luo,MY(Luo,Maoyi)[1,3]; Zhou,WJ(Zhou,Weijian)[1,2,3]; Hou,XL(Hou,Xiaolin)[2,3]; Chen,N(Chen,Ning)[2,3]; Zhang,LY(Zhang,Luyuan)[2,3]; Liu,Q(Liu,Qi)[2,3]; He,CH(He,Chaohui)[1,3]; Fan,YX(Fan,Yukun)[2,3]; Liang,WG(Liang,Wangguo)[1,2]; Wang,ZW(Wang,Zhiwen)[1]; Fu,YC(Fu,Yunchong)[2,3]
2011-02-28
发表期刊Chinese Journal of Analytical Chemistry
卷号39期号:2页码:193-197
文章类型期刊论文
摘要

The accurate determination of ultra low level (129)I in sample is critical and essential for the application of natural (129)I in geological dating and environmental tracer studies. In this work, iodine was first separated from soil by combustion at high temperature; the released iodine was collected in an alkali trap solution. AgI-AgCl coprecipitaiton was used to separate carrier free iodine from the trap solution and to prepare target. (129)I in the target was then measured using a 3. 0 MV accelerator mass spectrometer. The recovery of iodine during the combustion is higher than 95%. An iodine recovery of about 75%-85% was obtained in the coprecipitation and the total recovery of iodine is above 70%. The developed method has been successfully used to determine (129)I in soil sample with low iodine content. A (129)I/(127)I atomic ratio as low as 10(-11) in the deep soil has been determined. The determination of (129)I/(127)I was ratio down to 10(-12) in solid samples.

关键词Iodine Isotopic Isotopic Dating Coprecipitation Separation Carrier-free Iodine Accelerator Mass Spectrometry
DOI10.3724/SP.J.1096.2011.00193
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10259
专题加速器质谱中心
通讯作者Hou,XL(Hou,Xiaolin)[2,3]
作者单位1.Department of Environmental Science and Department of Nuclear Science and Technology, Xi’an Jiao Tong University, Xi’an 710049, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy Sciences, Xi’an 710075, China;
3.Xi’an Accelerator Mass Spectrometry Center, Xi’an 710054, China
推荐引用方式
GB/T 7714
Luo,MY,Zhou,WJ,Hou,XL,et al. Determination of Low Level 129I in Soil Samples Using Coprecipitation Separation of Carrier Free Iodine and Accelerator Mass Spectrometry Measurement[J]. Chinese Journal of Analytical Chemistry,2011,39(2):193-197.
APA Luo,MY.,Zhou,WJ.,Hou,XL.,Chen,N.,Zhang,LY.,...&Fu,YC.(2011).Determination of Low Level 129I in Soil Samples Using Coprecipitation Separation of Carrier Free Iodine and Accelerator Mass Spectrometry Measurement.Chinese Journal of Analytical Chemistry,39(2),193-197.
MLA Luo,MY,et al."Determination of Low Level 129I in Soil Samples Using Coprecipitation Separation of Carrier Free Iodine and Accelerator Mass Spectrometry Measurement".Chinese Journal of Analytical Chemistry 39.2(2011):193-197.
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