绿茶挥发性成分的 GC-MS 分析

GC-MS Analysis of Volatile Compounds in Thea vivrdis

利用程序升温毛细管气相色谱－质谱联用方法对一种绿茶的挥发成分进行分析鉴定，共分离出６０个组分，用峰面积归一化法算出其相对含量，用谱图检索确认出５２个组分，占总挥发成分的９８％。

The volatile compounds in Thea vivrdis have been analysed by combined means of programmed temprature capillary GC-MS and 60 compounds were separated in which 52 volatile compounds were identified according to their mass spectra. The identified part amounts to 99% of the total, including 11 alcohols, 3 ethers, 12 ketones, 3 aldehydes, 4 acids, 11 esters, 5 alkenes, 2 hydrocarbons, 1 hydrozine. There are six compounds content of each of them is more than 5%, occupied 50.39% of the total. They are 1,6-octadien-3-ol, 3,7-dimethyl-, nonadecanoic acid, 2,6-octadien-1-ol, 2,7-dimethyl-, 2-furanmethanol, 2-benzenemethanol, 2-hexadecan-1-ol, 3,7,11,15-tetramethyl-, their contents are 15.58%, 11.37%, 8.34%, 5.87%, 5.60%, 5.44% respectively. These are the main volatile compositions of green tea.