Glycerol of about 170 European wines was analyzed using gas chromatography−combustion−isotope ratio mass spectrometry technique. 13 C/ 12 C isotopic ratio measurements were performed to characterize glycerol's δ 13 C values of genuine wine samples from European Union wine-producing countries. Glycerol was also successfully dosed using an internal reference, 1,5-pentanediol.
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Calderone et al. (2004) studied this question.
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