摘要
本文介绍采用水蒸汽蒸馏的方法,从大蒜中提取出一种浅黄色的挥发油。用毛细管气相色谱-质谱联用技术,发现了挥发油中至少含有15种以上个组分。根据这些组分的质谱特征,定性识别了其中10种成分,它们都是有机硫化合物,文中给出了这些化合物的质谱图和结构式,讨论了其中二种物质的质谱裂解规律。
A yellow volatile oil was obtained from distillation of garlic. The oil thus obtained hasbeen analyzed by capillary gas chromatography-mass spectrometry and more than 15 componentswere found, of which 10 organic sulfides were identified. And the mass spectra and structuralformulas of the 10 and discussion of the fragmentation pathway on 2 of them were also given.
关键词
大蒜
挥发油
质谱
Garlic
volatile oil
mass spectrometry
