Novel 90 Sr analysis of environmental samples by Ion-Laser InterAction Mass Spectrometry

The sensitive analysis of 90 Sr with accelerator mass spectrometry (AMS) was developed to advance environmental radiology. One advantage of AMS is the ability to analyze environmental samples with 90 Sr/ 88 Sr atomic ratios of 10 −14 in following a simple chemical separation. Three different IAEA sa...

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Bibliographic Details
Published in:Analytical methods 2022-07, Vol.14 (28), p.2732-2738
Main Authors: Honda, Maki, Martschini, Martin, Marchhart, Oscar, Priller, Alfred, Steier, Peter, Golser, Robin, Sato, Tetsuya K., Kazuaki, Tsukada, Sakaguch, Aya
Format: Article
Language:English
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Summary:The sensitive analysis of 90 Sr with accelerator mass spectrometry (AMS) was developed to advance environmental radiology. One advantage of AMS is the ability to analyze environmental samples with 90 Sr/ 88 Sr atomic ratios of 10 −14 in following a simple chemical separation. Three different IAEA samples with known 90 Sr concentrations (moss-soil, animal bone, Syrian soil: 1 g each) were analyzed to assess the validity of the chemical separation and the AMS measurement. The 90 Sr measurements were conducted on the AMS system VERA combined with the Ion Laser InterAction Mass Spectrometry (ILIAMS) setup at the University of Vienna, which has excellent isobaric separation performance. The isobaric interference of 90 Zr in the 90 Sr AMS was first largely removed by chemical separation. The separation factor of Zr in two-step column chromatography with Sr resin and anion exchange resin was 10 6 . The 90 Zr remaining in the sample was effectively suppressed by ILIAMS. This procedure achieved a limit of detection
ISSN:1759-9660
1759-9679
DOI:10.1039/D2AY00604A