ヘッドスペースガスのガスクロマトグラフィーによる酒類エタノールの簡易迅速定量法 : ガスクロマトグラフィーによる揮発性発酵生産物の研究(第3報)

概要

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A simple and rapid quantitative determination of ethanol in 13 kinds of alcoholic drinks was attempted by gas chromatography using the head space technique.The apparatus was two gas chromatographs equipped with a thermal conductivity detector and a hydrogen flame ionization detector. The column packing used was 5% PEG 20M/Chamelite. As the fundamental experiment, the relation between concentration of internal standard, n-propanol, and that of ethanol was examined.When the concentration of n-propanol was constant at a treatment temperature of 50℃, the relation between A_E/A_<std> (peak area of ethanol/peak area no n-propanol)and concentration of thanol was linear for ethanol concentrations up to five times n-propanol concentration. However, when the ratio of concentration of n-propanol to that of ethanol was 1 : 1,these A_E/A_<std> values were not constant. Therefore, for determination of ethanol in alcoholic drinks, a standard solution of the same concentration of n-propanol as that added to the drinks should be used in the experiment.Calculated ethanol contents of alcoholic drinks examined under the optimum conditions agreed sufficiently with the values by distillation method.
公益社団法人日本生物工学会の論文
1976-07-25