Ethanol Determination in Beer by Gas-Liquid Chromatography: A Detailed Analysis

Ethanol Determination in Beer by Gas-Liquid Chromatography

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Abstract

The method of using gas liquid chromatography for the determination of percent of ethanol in beer has been applied in many breweries. Ethanol percentage in beer is determined by liquid gas chromatography because it is thermally stable and is also volatile as the operating temperatures of gas liquid chromatography. The report details the gas liquid chromatography used in determining the percent of alcohol in a beer. Stella Artois beer was degassed by pouring into two beakers. 400 µl (0.4 cm3) of Propane-1-ol was added in all ethanol concentrations from 0 to 6% v/v then made to the mark with distilled water. The beer sample was prepared by pouring 400 µl of Propane-1-ol into a 10 cm3 volumetric flask and made to the mark with degassed beer. Then the…