Speciation analysis of 129I in seawater using coprecipitation and accelerator mass spectrometry and its applications

被引：12
作者：
Xing, Shan [1 ]
Hou, Xiaolin [1 ,2 ]
Aldahan, Ala [3 ,4 ]
Possnert, Goran [5 ]
机构：
[1] Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian AMS Ctr,Inst Earth Environm, Xian 710061, Peoples R China
[2] Tech Univ Denmark, Ctr Nucl Technol, Riso Campus, DK-4000 Roskilde, Denmark
[3] United Arab Emirates Univ, Dept Geol, Al Ain, U Arab Emirates
[4] Uppsala Univ, Dept Earth Sci, S-75120 Uppsala, Sweden
[5] Uppsala Univ, Tandem Lab, S-75120 Uppsala, Sweden
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 01期
基金：
美国国家科学基金会;
关键词：
I-129; Speciation analysis; Accelerator mass spectrometry; Seawater; ANTHROPOGENIC I-129; I-129/I-127; TRACER; SAMPLES; IODINE; WATERS; LEVEL;
D O I：
10.1007/s10967-016-5060-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Speciation analysis of long-lived I-129 in seawater can provide useful information on the source of water masses. This paper presents an improved method for speciation analysis of I-129 based on coprecipitation of iodide as AgI with Ag2SO3 and AgCl. By adding a small amount of I-127 carrier, the separation efficiency of iodine species and the accuracy and precision of I-129 measurement are remarkably improved. I-129 species in depth profiles of seawater from the Antarctic were analyzed for investigation of water circulation in the Antarctic.
引用
收藏
页码：833 / 841
页数：9
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