蟛蜞菊挥发油化学成分的初步研究

目的：对蟛蜞菊茎叶和花挥发油化学成分进行分析，为开发利用蟛蜞菊药用资源提供依据。方法：用水蒸气蒸馏法提取蟛蜞菊茎叶和花的的挥发油；采用气相色谱质谱计算机联用技术分析鉴定。结果：从蟛蜞菊茎叶和花挥发油中分别鉴定了20和21种化学成分，占挥发油总量的94．68％和98．54％，其中有5种化学成分为蟛蜞菊茎叶和花挥发油共有，分别占总量的22．43％和28．65％。结论：蟛蜞菊茎叶和花中挥发油化学成分差异较大。

Analysis of chemical constituents of volatile oil in wedelia chinensis by GC-MS

Object: The Chemical constitutions of volatile oil in wedelia chinensis were investigated to provide guidance for uses of wedelia chinensis medicinal resources. Methods: After two kinds of volatile oil were prepared by steam distillation, the chemical constituents were separated and identified by GC-MS. The relative contents in the two kinds of volatile oil were calculated with Area Normalization. Results: 20 Chemical constituents were identified representing 94.68% of the volatile oil of mixture of stem and leaves. 19 Chemical constituents were identified representing 98.54% of the volatile oil of flowers. The two kinds of different volatile oil had 5 same chemical constituents. Their contents were 22.49% and 28.65% respectively. Conclusion: Chemical constituents had comparative difference in the two kinds of volatile oil.