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对７种山紫菀类药材进行了挥发油含量测定，并用ＧＣ－ＭＳ进行成分分析。结果表明，蹄叶橐吾挥发油含量最高，达３％，而毛苞橐吾最低，仅０．４％，各药材挥发油中成分差异甚大，可用于定性鉴别
The volatile oil content of seven species of Asteraceae was determined and analyzed by GC-MS. The results showed that the volatile oil content of Ligularia virgaurea was the highest, up to 3%, and that of Ligularia ulmoides was the lowest, only 0.4%. The composition of volatile oil in each medicinal material varied greatly and could be used for qualitative identification.