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Ultrafiltration of Bone Samples is Neither the Problem nor the Solution

Published online by Cambridge University Press:  09 February 2016

Réka-Hajnalka Fülöp*
Affiliation:
Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, Germany
Stefan Heinze
Affiliation:
Institute of Nuclear Physics, University of Cologne, 50674 Cologne, Germany
Svetlana John
Affiliation:
Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, Germany
Janet Rethemeyer
Affiliation:
Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, Germany
*
2 Corresponding author. Email: rfueloep@uni-koeln.de.
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Abstract

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We conducted analyses to identify the most suitable bone pretreatment protocol to be used by the recently established Radiocarbon Laboratory at the University of Cologne, CologneAMS. In 2 sets of analyses, we determined 14C ages for subsamples taken from 3 14C bone standards (Oxford Mammoth, VIRI I, and VIRI H) complemented by age determinations of 12 unknown bone samples. Our results suggest that the strength and duration of the acid and alkali steps and the temperature of gelatinization might have a larger influence on the obtained ages than the presence or absence of ultrafiltration as a pretreatment step.

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