小飞蓬挥发性化学成分的GC-MS分析

目的:用GC-MS分析小飞蓬挥发油的化学成分.方法:采用水蒸气蒸馏法提取小飞蓬挥发油,利用GC-MS对所提取的挥发油成分进行分离鉴定,并用色谱峰面积归一化法计算各成分的相对百分含量.结果:鉴定出小飞蓬挥发油成分中26个化合物,占所提取挥发油总量的98.25％.主要成分为:柠檬烯(58.30％)、2,6-二甲基-6-(4-甲基-3-戊烯基)二环3.1.1]-2-庚烯(8.7％)、β-蒎烯(6.28％)、2-甲基-6-(4-甲基苯基)-2-庚烯(5.13％)、棕榈酸(5.07％)、月桂烯(4.52％)、1,3,5-三亚甲基-环庚烷(2.05％).结论:小飞蓬挥发油主要成分为柠檬烯.

Analysis of Constituents of Volatile Oil from Erigeron canadensis by GC-MS

Objective:To analyze the constituents of volatile oil from Erigeron canadensis by GC-MS.Method: The volatile oil was extracted by steam distillation,and then separated by capillary gas chromatography.The constituents of volatile oil were identified and their amount was determined by normalization method.Result: Twenty-six components were identified from E.canadensis and their amount accounted 98.25% of total volatile oil.The main components were limonene(58.30%),2,6-dimethyl-6-(4-methyl-3-pentenyl) bicyclo -2-heptene(8.7%),β-pinene(6.28%),2-methyl-6-(4-methyl-phenyl)-2-heptene(5.13%),palmitic acid(5.07%),myrcene(4.52%),1,3,5-trimethylene-cycloheptane(2.05%).Conclusion: The main component of volatile oil from E.canadensis is limonene.