Processing of Korolevo samples aimed at AMS determination of in situ.sup.10Be and .sup.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 .sup.10Be and .sup.26Al 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 sam...

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Published in:Journal of radioanalytical and nuclear chemistry 2023-05, Vol.332 (5), p.1583
Main Authors: Kameník, Jan, Garba, Roman, Stübner, Konstanze, Lachner, Johannes, Rugel, Georg, Veselovský, Frantisek, Jansen, John D
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Mass spectrometry
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container_title Journal of radioanalytical and nuclear chemistry
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creator Kameník, Jan
Garba, Roman
Stübner, Konstanze
Lachner, Johannes
Rugel, Georg
Veselovský, Frantisek
Jansen, John D
description The sample preparation and evaluation of the effects of impurities on the determination of .sup.10Be and .sup.26Al 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 .sup.26Al to .sup.10Be 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.sub.2 molecules.
doi_str_mv 10.1007/s10967-022-08738-8
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title Processing of Korolevo samples aimed at AMS determination of in situ.sup.10Be and .sup.26Al nuclides and their purity control using follow-up mass spectrometry scans
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