Processing of Korolevo samples aimed at AMS determination of in situ10Be and 26Al nuclides and their purity control using follow-up mass spectrometry scans

The sample preparation and evaluation of the effects of impurities on the determination of 10 Be and 26 Al by accelerator mass spectrometry (AMS) was performed as an initial part of research project determining the timing of early hominin occupation at Korolevo, western Ukraine. The rock samples ana...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2023, Vol.332 (5), p.1583-1590
Main Authors: Kameník, Jan, Garba, Roman, Stübner, Konstanze, Lachner, Johannes, Rugel, Georg, Veselovský, František, Jansen, John D., Usik, Vitaly, Kučera, Jan
Format: Article
Language:English
Subjects:
Beryllium 10
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Dilution
Hadrons
Heavy Ions
Impurities
Inorganic Chemistry
Lithology
Mass spectrometry
Nuclear Chemistry
Nuclear Physics
Nuclides
Physical Chemistry
Research projects
Titanium dioxide
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Summary:The sample preparation and evaluation of the effects of impurities on the determination of 10 Be and 26 Al by accelerator mass spectrometry (AMS) was performed as an initial part of research project determining the timing of early hominin occupation at Korolevo, western Ukraine. The rock samples analysed exhibited various levels of weathering, lithology, and mass. The follow-up mass spectrometry scans revealed Ti impurity in BeO targets which stimulated quantification of Ti in quartz concentrate. The 26 Al to 10 Be ratios were independent on Ti and Al impurity for samples from the same depositional level. AMS Be current reduction was a function of BeO dilution by TiO 2 molecules.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-022-08738-8