The volatile oil constituents have been analysed preliminarily by GC, thus providing an experimental basis for improving the preparation of the drug and controlling the quality.

并利用气相色谱法对其挥发油组分进行了初步分析。为改进剂型及控制其质量提供了实验依据。

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Distillation extraction method is used for extracting the volatile constituents of the Herba Selaginellae. The average oil yield obtained is 2.85%.

报道了用水蒸汽蒸馏萃取法提取卷柏中挥发性物质，测得卷柏挥发油的含量为2.85%。

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Objective To analyze the chemical constituents of the volatile oil from Artemisia argyi Levl.

目的分析艾叶挥发油的主要化学成分。

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