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Measuring 14C Concentration in Wine to Monitor Global Distribution of 14C

Published online by Cambridge University Press:  09 February 2016

Hirohisa Sakurai ,
Saori Namai ,
Emiko Inui ,
Fuyuki Tokanai ,
Kazuhiro Kato ,
Yui Takahashi ,
Taichi Sato ,
Satoshi Kikuchi ,
Yumi Arai  and
Kimiaki Masuda
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Hirohisa Sakurai*
Affiliation:
Department of Physics, Yamagata University, Yamagata, Japan
Saori Namai
Affiliation:
Graduate School of Science and Engineering, Yamagata University, Yamagata, Japan
Emiko Inui
Affiliation:
Faculty of Science, R.I. Laboratory, Yamagata University, Yamagata, Japan
Fuyuki Tokanai
Affiliation:
Department of Physics, Yamagata University, Yamagata, Japan
Kazuhiro Kato
Affiliation:
Faculty of Science, Yamagata University, Yamagata, Japan
Yui Takahashi
Affiliation:
Graduate School of Science and Engineering, Yamagata University, Yamagata, Japan
Taichi Sato
Affiliation:
Graduate School of Science and Engineering, Yamagata University, Yamagata, Japan
Satoshi Kikuchi
Affiliation:
Fujitsu Ltd., Numazu, Japan
Yumi Arai
Affiliation:
Department of Physics, Yamagata University, Yamagata, Japan
Kimiaki Masuda
Affiliation:
STE Lab, Nagoya University, Nagoya, Japan
Katsumasa Shibata
Affiliation:
Graduate School of Science and Engineering, Yamagata University, Yamagata, Japan
Yasunao Kuriyama
Affiliation:
Department of Material and Biological Chemistry, Yamagata University, Yamagata, Japan
*
2Corresponding author. Email: sakurai@sci.kj.yamagata-u.ac.jp.
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Abstract

Using liquid scintillation counting (LSC) and accelerator mass spectrometry (AMS), radiocarbon concentrations were measured for wine from 8 wineries located in 7 countries in the Northern and Southern hemispheres. The 14C concentrations of ethanol and residual materials in the wine were correlated (correlation coefficient 0.82). The δ14C measurements of wine samples from the mid-latitudes in the Northern Hemisphere were approximately 1l% lower than the extrapolations from Schauinsland data, suggesting a local fossil fuel effect. δ14C measurements from the wine samples from the Southern Hemisphere were higher than those from the Northern Hemisphere. The offsets of the 4 wine δ14C measurements were significant, with values between approximately 8% and 15%. Because the harvest years of the mixed grapes were estimated to be 7–12 yr older than their vintage years, this leads to a caveat when determining the 14C concentrations of the year using the wine vintage.

Type
Unusual Applications of 14C Measurement
Information
Radiocarbon , Volume 55 , Issue 3: Proceedings of the 21st International Radiocarbon Conference (Part 2 of 2) , 2013 , pp. 1827 - 1833
Copyright
Copyright © 2013 by the Arizona Board of Regents on behalf of the University of Arizona 

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