白酒中游离有机酸的定量测定

Quantitative Determination of Free Organic Acids in Chinese Liquors

本文介绍了一种简单、准确测定白酒中游离有机酸的方法。酒样经中和、浓缩后，未经衍生直接注入毛细管色谱住，经气相色谱－质谱鉴定并采用三种内标物定量，可准确测定白酒中Ｃ＿２～Ｃ＿（１８）的二十种游离脂肪酸及三种苯羧酸，结果重现性良好。

simple and accurate method for the determination of free organic acids(FOA)in Chinese liquors is de-ibed. After being neutralized and concentrated,underivatized FOA can be directly injected into a capillary umn. Twenty free fatty acids and three phenyl carboxylic acids have accurately been determined throughidentification with gas chromatography-mass speetrometry and quantificption by using three internal standards. The repeatability is good.