title: [GC-MS analysis of essential oils from Radix Angelicae Pubescentis].
abstract: OBJECTIVE
  To analyze the constituents of the essential oils from Radix Angelicae Pubescentis planted in a GAP base of the Chinese medica materials, and provide the scientific basis for quality control.
  
  
  METHODS
  The essential oils were extracted by water-steam distillation and separated by GC capillary column chromatography. The components were calculated with normalization method, and were identified by MS detector.
  
  
  RESULTS
  229 peaks weredetected, among which 8 compounds have been identified, which made up 78.23% of the total essential oil.
  
  
  CONCLUSIONS
  In the total essential oils of Radix Angelicae Pubescentis, 3-carene (8.89%), m-cymene (4.99%) and beta-phellandrene (8.35%) as the monoterpenes and its derivatives, and eudesma-4 (14), 11-diene (4.36%), alpha-selinene (1.36%), ledol (1.14%), alpha-bisabolol (6.03%), and 1, 8-dimethyl-4-(1-methylethyl)-spiro[4.5]dec-8-en-7-one (4.37%) as the sesquiterpenes and its derivatives, are main components.
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences of Peking University, Beijing, China. xwyang@bjmu.edu.cn
authors.forename: Xiu-wei
authors.initials: XW
authors.lastname: Yang
authors.forename: Yu-feng
authors.initials: YF
authors.lastname: Liu
authors.forename: Hai-yan
authors.initials: HY
authors.lastname: Tao
authors.forename: Zhi
authors.initials: Z
authors.lastname: Yang
authors.forename: Shi-ying
authors.initials: SY
authors.lastname: Xiao
mesh_terms: D029969:Angelica / Q000737:chemistry*; D000081008:Bicyclic Monoterpenes; D000081007:Cymenes; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D039821:Monoterpenes / Q000032:analysis; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis
chemical_list: D000081008:Bicyclic Monoterpenes; D000081007:Cymenes; D039821:Monoterpenes; D009822:Oils, Volatile; D012717:Sesquiterpenes; C051707:1-methyl-3-isopropylbenzene; C421806:ledol; C030218:3-carene