食品与机械2018，Vol.34Issue(2)：58-61,4.DOI:10.13652/j.issn.1003-5788.2018.02.013
气相色谱法测定低酒精度饮料中乙醇的含量
Determination the content of ethanol in low alcohol beverages by gas chromatography
摘要
Abstract
The ethanol content of beverages was measured by two methods, the static headspace gas chromatography and the traditional method of gas chromatography after distillation,using TG-WAXMS chromatographic column.The two methods had good linear relationship in the volume fraction of ethanol ranging from 0.01% to 5.00%.In traditional distillation method,the detection limit of volume fraction of ethanol was 0.003%,and the detection limit of static headspace was 0.001%.The results showed that due to the complicated pre-treatment processes,the recovery rate of the gas chromatography after traditional distillation was relatively low (83%~91%).While the method of direct determination of ethanol in the beverage by static headspace method was simple,and kept the ethanol stable during the detection.The recovery rate was between 97% and 100%.关键词
低酒精度饮料/乙醇/静态顶空/蒸馏法/气相色谱Key words
low alcohol beverages/ethanol/static headspace/distil-lation/gas chromatography引用本文复制引用
陈国通,毛琼玲,左书瑞,陈俊宇,王爱霞,邵家丽..气相色谱法测定低酒精度饮料中乙醇的含量[J].食品与机械,2018,34(2):58-61,4.基金项目
新疆维吾尔自治区公益性科研院所基本科研业务经费资助项目(编号:KYGY2016200) （编号:KYGY2016200）
