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Gas-liquid chromatographic determination of ethanol in “Alcohol-Free” beverages and fruit juices

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Summary

A rapid, sensitive and direct method is described for the detemination of ethanol in “Alcohol-Free” beverages and fruit juices. A known amount of internal standard is added to the sample and a 0.1 mm3 aliquot is injected directly into a gas chromatograph. Ethanol concentrations as low as 0.005% v/v can be detected and quantitatively determined. Five brands of beer, seven brands of grape juice and four brands of apple juice; all labelled “Alcohol-Free” were analyzed. Ethanol in concentrations ranging from 0.009% v/v to 0.385% v/v was found. These findings indicate that these products are not actually “Alcohol-Free” but alcohol-low or alcohol-poor.

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Author information

Correspondence to A. M. Morad.

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Morad, A.M., Hikal, A.H. & Buchanin, R. Gas-liquid chromatographic determination of ethanol in “Alcohol-Free” beverages and fruit juices. Chromatographia 13, 161–163 (1980). https://doi.org/10.1007/BF02259306

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Key Words

  • Alcohol-free beverages
  • Gas-liquid chromatography