Determination of Ultratrace Level 135Cs and 135Cs/137Cs Ratio in Small Volume Seawater by Chemical Separation and Thermal Ionization Mass Spectrometry

The atomic ratio of 135Cs/137Cs is a powerful fingerprint for distinguishing the source terms of radioactive contamination and tracing the circulation of water masses in the ocean. However, the determination of the 135Cs/137Cs ratio is very difficult due to the ultratrace level of 135Cs (

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2020-05, Vol.92 (9), p.6709-6718
Main Authors: Zhu, Liuchao, Xu, Changkun, Hou, Xiaolin, Qiao, Jixin, Zhao, Yonggang, Liu, Guorong
Format: Article
Language:English
Subjects:
Ammonium
Analytical chemistry
Atomic properties
Barium
Cation exchange
Cation exchanging
Cesium
Cesium 137
Cesium isotopes
Cesium radioisotopes
Chemical analysis
Chemical separation
Chemistry
Chromatography
Column chromatography
Decontamination
Detection limits
Ionization
Ions
Low level
Mass spectrometry
Mass spectroscopy
Nuclear accidents
Nuclear power plants
Polyacrylonitrile
Radioactive contamination
Radioactive fallout
Radioactive pollution
Radioactive tracers
Rubidium
Scientific imaging
Seawater
Spectroscopy
Water analysis
Water circulation
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Description
Summary:The atomic ratio of 135Cs/137Cs is a powerful fingerprint for distinguishing the source terms of radioactive contamination and tracing the circulation of water masses in the ocean. However, the determination of the 135Cs/137Cs ratio is very difficult due to the ultratrace level of 135Cs (
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.0c00688