Performance of Accelerator Mass Spectrometry for 129I using AgI–AgCl carrier-free coprecipitation

Luyuan Zhang, Xiaolin Hou, Weijian Zhou, Ning Chen, Qi Liu, Maoyi Luo, Yukun Fan, Yunchong Fu

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

129I has been successfully applied as tracer in environmental, geological, and oceanographic research. For samples with low stable iodine concentration and ultra low level 129I, the sample preparation technique to separate iodine prior to AMS measurement has been a bottleneck, limiting the applicability of 129I.We have
reported a carrier-free method, using coprecipitation, to avoid the potential introduction of 129I through the use of stable iodine carrier iodine. In this work, the detection limit and the analytical uncertainty of this method are investigated and minimum sample amount required to obtain reliable analytical results are estimated. The method is validated with a series of samples in ranges of known iodine concentrations and 129I/127I ratios. The results confirm our previous conclusion that an AMS target containing 5.0 lg iodine can be used for analyzing samples with 129I/127I > 1012, and that for samples with 129I/127I < 1013 more than 25 lg iodine is necessary.© 2012 Elsevier B.V. All rights reserved.
Original languageEnglish
JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume294
Pages (from-to)276-280
ISSN0168-583X
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event12th International Conference on Accelerator Mass Spectrometry - Wellington, New Zealand
Duration: 20 Mar 201125 Mar 2011
http://www.gns.cri.nz/ams12/

Conference

Conference12th International Conference on Accelerator Mass Spectrometry
CountryNew Zealand
CityWellington
Period20/03/201125/03/2011
Internet address

Fingerprint Dive into the research topics of 'Performance of Accelerator Mass Spectrometry for <sup>129</sup>I using AgI–AgCl carrier-free coprecipitation'. Together they form a unique fingerprint.

Cite this