琼花挥发性成分的GC-MS分析

Analysis of Volatile Components from the Flower of Viburnum Macrocephalum f.keteleeri by GC-MS

采用顶空固相微萃取操作,结合气相色谱质谱联用技术对琼花的挥发性成分进行鉴定分析,并用面积归一法测定其相对含量。共分离了48个色谱峰,初步鉴定了其中的24个成分,占其挥发性成分的81.64%。主要包括烷烃、烯烃、醇、酚、酯、及芳烃类等6类化合物,其中烯烃化合物占总色谱馏出峰面积的51.57%,烷烃类占11.95%,芳烃类占9.61%,醇类占5.47%,酯类占2.43%,酚类含量最低,只占0.7%。其主要化合物有:石竹烯(13.3%),5,6-二亚甲基环辛烯(11.11%),古巴烯(7.42%),2-乙烯基-1,1-二甲基-3-亚甲基环己烷(8.47%),十一烷(2.39%),3-己烯-1-醇(3.15%)等化合物。

The volatile components from the flower of Viburnum macrocephalum f. keteleeri were obtained by solid-phase microextraction（SPME）, and were separated and identified by gas chromatography-mass spectrometer（GC-MS）. The GC profile showed 48 peaks, within which 24 components were identified, which occupied 81.64 %. The main constituents of the extract from the flower of Viburnum macrocephalum f. keteleeri were found to be heterocyclic compounds（51.57%）, alkanes（11.95%）, Alcohols（5.47%）, esters（2.43%）, and phenols（0.7%）. The main compounds were： Caryophyllene（13.3%）, Cyclooctene,5,6-dimethylene-（11.11%）, Copaene（7.42%）, Cyclohexane,2-ethenyl-l,l-dimethyl-3-methylene-（8.47%）, Undecane（2.39%）, 3-Henxen- 1 -ol,（E）-（3.15 %）and so on.