Comparative Study on Chemical Components of the Volatile Oil from the Root of Angelica pubescens in Different Habitats

The chemical components of the volatile oil extracted from the root(Duhuo) of Angelica pubescens grown in three habitats were analyzed by GC-MS.29 compositions composed of 82% of the total volatile oil were identified from Zheduhuo;44(94%)from Ziqiuduhuo;25(55%)from Chuanduhuo.The result shows that the difference of the chemical components of the volatile in the root of Angelica pubescens from these three habitats is obvious.