Assessment and Development of Bone Preparation for Radiocarbon Dating at HEKAL
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2019_IMajor_BonePrep_FinalPreP ...
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Final Accepted Manuscript
Author
Major, IstvánFutó, István
Dani, János
Cserpák-Laczi, Orsolya
Gasparik, Mihály
Jull, A J Timothy
Molnár, Mihály
Affiliation
Univ Arizona, Dept GeosciUniv Arizona, Dept Phys
Issue Date
2019-10
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UNIV ARIZONA DEPT GEOSCIENCESCitation
Major, I., Futó, I., Dani, J., Cserpák-Laczi, O., Gasparik, M., Jull, A., & Molnár, M. (2019). Assessment and Development of Bone Preparation for Radiocarbon Dating at HEKAL. Radiocarbon, 61(5), 1551-1561. doi:10.1017/RDC.2019.60Journal
RADIOCARBONRights
© 2019 by the Arizona Board of Regents on behalf of the University of Arizona.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Bone is one of the most complex sample materials used for radiocarbon (C-14) dating. The installation of the EnvironMICADAS AMS at HEKAL (department of ICER) in 2011 required the adoption of new sample preparation techniques for small bone samples. Since then, hundreds of procedural background and known-age bones have been processed using our modified Longin method (MLM) and dated along with unknown samples. Their results are used in this study to assess the reproducibility of our current bone preparation method and the real uncertainty of the final age result. In addition, using the background samples, which are included in each bone measurement batch, blank correction of the unknown samples could also be performed. The mean (FC)-C-14 value of our bone blanks is generally better than 0.005 (similar to 42,500 BP) alongside 0.0013 SD. Good reproducibility was confirmed by the results of the laboratory known-age bone as well, where the standard deviation of the mean is better than 0.0025. In addition, the results of the three bone samples used in an ultrafiltration (UF) test study did not show notable differences from the ones obtained by our current protocol in 1 sigma uncertainty range but more experiments will be performed in the near future.Note
6 month embargo; published online: 25 June 2019ISSN
0033-8222Version
Final accepted manuscriptSponsors
European UnionEuropean Union (EU); State of Hungary; European Regional Development FundEuropean Union (EU) [GINOP-2.3.2-15-2016-00009]; IAEA (International Atomic Energy Agency)International Atomic Energy Agency; Momentum Mobility research project of the Hungarian Academy of Sciencesae974a485f413a2113503eed53cd6c53
10.1017/rdc.2019.60