title: [Analysis on the chemical compositions of the volatile oil from ultramicro-powder and common grinding powder of Cinnamomum cassia].
abstract: 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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: College of TCM, Southern Medical University, Guangzhou 510515, China. sysll@fimmu.com
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.forename: Nu-Yun
authors.initials: NY
authors.lastname: Liu
authors.forename: Qiang
authors.initials: Q
authors.lastname: Liu
mesh_terms: D000171:Acrolein / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry; D027424:Cinnamomum / Q000737:chemistry*; D000081007:Cymenes; D008401:Gas Chromatography-Mass Spectrometry; D039821:Monoterpenes / Q000032:analysis / Q000737:chemistry; D009822:Oils, Volatile / Q000032:analysis / Q000737:chemistry* / Q000302:isolation & purification; D010316:Particle Size; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011208:Powders; D013943:Thymol / Q000032:analysis* / Q000737:chemistry
chemical_list: D000081007:Cymenes; D039821:Monoterpenes; D009822:Oils, Volatile; D011208:Powders; D013943:Thymol; D000171:Acrolein; C073316:carvacrol; C012843:cinnamaldehyde