Objective: To analyse and compare the chemical compositions in the volatile oil from Utramicro-powder and Common Grinding Powder of Cinnamomum.
Methods: The volatile oil was extracted by steam-stilling and analyzed by GC-MS. The relative content of each component was calculated by area normalization method.
Results: 34 and 19 peaks were isolated from Ultramicro-powder and Common Grinding Powder of Cinnamomum respectively. All of them were identified.
Conclusion: The chemical components of the volatile oil from Ultramicro-powder and Common Grinding Powder of Cinnamomum are reported, the results here provides scientific proof for the application in external preparation of Cinnamomum.