Processing of Korolevo samples aimed at AMS determination of in situ .sup.10./sup.Be and .sup.26./sup.Al nuclides and their purity control using follow-up mass spectrometry scans

0574078 - ÚJF 2024 RIV NL eng J - Journal Article
Kameník, Jan - Garba, Roman - Stubner, K. - Rugel, G. - Veselovský, F. - Jansen, John D. - Usik, V. I. - Kučera, Jan
Processing of Korolevo samples aimed at AMS determination of in situ ¹⁰Be and ²⁶Al nuclides and their purity control using follow-up mass spectrometry scans.
Journal of Radioanalytical and Nuclear Chemistry. Roč. 332, č. 5 (2023), s. 1583-1590. ISSN 0236-5731. E-ISSN 1588-2780
R&D Projects: GA MŠMT EF16_019/0000728
Research Infrastructure: CICRR - 90241
Institutional support: RVO:61389005 ; RVO:67985530
Keywords : Terrestrial cosmogenic nuclides * Accelerator mass spectrometry * Be-10 * Al-26 * Early Pleistocene * Korolevo
OECD category: Analytical chemistry; Geology (GFU-E)
Impact factor: 1.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1007/s10967-022-08738-8

The sample preparation and evaluation of the effects of impurities on the determination of Be-10 and Al-26 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 Al-26 to Be-10 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 TiO2 molecules.
Permanent Link: https://hdl.handle.net/11104/0344443