IEECAS OpenIR  > 加速器质谱中心
Analysis of low-level I-129 in brine using accelerator mass spectrometry
Chen, N (Chen, Ning)[ 1,2 ]; Hou, XL (Hou, Xiaolin)[ 1 ]; Zhou, WJ (Zhou, Weijian)[ 1,3 ]; Fan, YK (Fan, Yukun)[ 1 ]; Liu, Q (Liu, Qi)[ 1,2 ]
2014-03-14
发表期刊JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
卷号299期号:3页码:1965-1971
文章类型期刊论文
摘要

An improved solvent extraction procedure for iodine separation from brine samples has been applied at Xi'an Accelerator Mass Spectrometry (AMS) center. Oil in the brine sample has to be removed to avoid appearance of the third phase during solvent extraction and to improve the chemical yield of iodine. The small amount of oil remained in the water phase was first removed by phase separation through settling down sufficiently based on their immiscibility, and then by filtration through a cellulose filter, on which oil was absorbed and removed. After oil removed, extraction recovery of iodine could achieve more than 90 %. The sodium bisulfite as an effective reductant should be added before acidification to avoid loss of iodine by formation of I-2 in sample via reaction of iodate and iodide at pH 1-2, and then pH was adjusted to 1-2 to reduce the iodate to iodide followed by oxidation of iodide to I-2 and solvent extraction to separate all inorganic iodine. As a pre-nuclear era sample, I-129/I-127 ratio in brine is normally more than two orders of magnitude lower than that in present surface environmental samples, so prevention of cross-contamination and memory effect in apparatus during processing procedure are very critical for obtaining reliable results, and monitoring the procedure blank is very important for analytical quality of I-129. The I-129/I-127 isotopic ratio in the brine samples and procedure blank of iodine reagents were measured to be (1.9-2.7) x 10(-13) and 2.08 x 10(-13), respectively, 3-4 orders of magnitudes lower than that in environmental samples in Xi'an, and the result of procedure blank is in the same level as the previous experiments in past 3 years, indicating contamination is not observed in our method.

关键词Iodine-129 Radiochemical Separation Accelerator Mass Spectrometry Oil Field Water Brine Geological Dating
DOI10.1007/s10967-013-2915-y
收录类别SCI
语种英语
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9688
专题加速器质谱中心
通讯作者Hou, XL (Hou, Xiaolin)[ 1 ]
作者单位1.Xi’an AMS Center, State Key Laboratory of Loess andQuaternary Geology, Institute of Earth Environment, ChineseAcademy of Sciences, Xi’an, China;
2.University of Chinese Academy of Science, Beijing, China;
3.Xi’an JiaoTong University, Xi’an, China
推荐引用方式
GB/T 7714
Chen, N ,Hou, XL ,Zhou, WJ ,et al. Analysis of low-level I-129 in brine using accelerator mass spectrometry[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2014,299(3):1965-1971.
APA Chen, N ,Hou, XL ,Zhou, WJ ,Fan, YK ,&Liu, Q .(2014).Analysis of low-level I-129 in brine using accelerator mass spectrometry.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,299(3),1965-1971.
MLA Chen, N ,et al."Analysis of low-level I-129 in brine using accelerator mass spectrometry".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 299.3(2014):1965-1971.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Analysis of low-leve(192KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chen, N (Chen, Ning)[ 1,2 ]]的文章
[Hou, XL (Hou, Xiaolin)[ 1 ]]的文章
[Zhou, WJ (Zhou, Weijian)[ 1,3 ]]的文章
百度学术
百度学术中相似的文章
[Chen, N (Chen, Ning)[ 1,2 ]]的文章
[Hou, XL (Hou, Xiaolin)[ 1 ]]的文章
[Zhou, WJ (Zhou, Weijian)[ 1,3 ]]的文章
必应学术
必应学术中相似的文章
[Chen, N (Chen, Ning)[ 1,2 ]]的文章
[Hou, XL (Hou, Xiaolin)[ 1 ]]的文章
[Zhou, WJ (Zhou, Weijian)[ 1,3 ]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。