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

Speciation analysis of long-lived 129 I in seawater can provide useful information on the source of water masses. This paper presents an improved method for speciation analysis of 129 I based on coprecipitation of iodide as AgI with Ag 2 SO 3 and AgCl. By adding a small amount of 127 I carrier, the...

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Bibliographic Details
Published in:Journal of Radioanalytical and Nuclear Chemistry
Main Authors: Xing, Shan, Hou, Xiaolin, Aldahan, Ala, Possnert, Göran
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
129I
Accelerator mass spectrometry
Seawater
Speciation analysis
Antarctic
The Antarctic
Antarc*
Online Access:https://orbit.dtu.dk/en/publications/1b644d7d-2492-4324-acbe-2b9720a5dfb6
https://doi.org/10.1007/s10967-016-5060-6
https://backend.orbit.dtu.dk/ws/files/140018988/Post_print_129I_speciation_in_seawater_JRNC2017.pdf
Description
Summary:Speciation analysis of long-lived 129 I in seawater can provide useful information on the source of water masses. This paper presents an improved method for speciation analysis of 129 I based on coprecipitation of iodide as AgI with Ag 2 SO 3 and AgCl. By adding a small amount of 127 I carrier, the separation efficiency of iodine species and the accuracy and precision of 129 I measurement are remarkably improved. 129 I species in depth profiles of seawater from the Antarctic were analyzed for investigation of water circulation in the Antarctic.

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