关键词: 白丁香鲜花, 挥发性成分, GC-MS, 昆虫信息素, 香料, 药物

Abstract: The chromatography-mass spectrometer (GC-MS) techniques,compared with published literatures were employed to study the volatile constituents of Syringa oblate var.affinis Lingelsh. flower by steam distillation and direct adsorption. The results indicated that volatile constituents are different with different extracting methods. 27 compounds, obtained by the direct adsorption and 45 compounds, obtained by the steam distillation, are identified by GC-MS technique from the flower. The principle compounds by direct adsoption, the characteristic headspace volatile compounds of perfume and insect pheromone, are terpene, lilac aldehyde A-D, lilac alcohol A-D, farnesene ect by direct adsorption. And the other compounds by steam distillation, the characteristic compounds of other perfume and medicament, are terpene, phenylethyl alcohol, lilac aldehyde A- D,3 -hexen-1-ol,(Z),2 -methoxy-4-vinylphenol,2 ,6,10-dodecatrien-1-ol, 3,7,11-trimethyl-,9 -Nonadecene, alkane ect.Byc ombining direct adsorption with steam distillation,it is a good and correct method for determining low volatile constituents of fresh flowers, used for headspace volatile perfume or other kind of perfume, insect pheromone and medicament.

Key words: flower of Syringa oblate var.affinis, constituent of volatile oil, GC-MS, insect pheromone, perfume, medicament