title: [Determination of caryophyllene in Eupatorium fortune].
abstract: OBJECTIVE
  To develop a GC method to determine the content of caryophyllene in Eupatorium fortune.
  
  
  METHODS
  The samples were determined on a DB-1701 (0.32 mm x 30 m, 0.25 microm) quartz capillary column. And the sample was extracted with ethanol by the ultrasonic assisted extraction.
  
  
  RESULTS
  The calibration curve of caryophyllene is liner over the range of 0.002-2.0 g x L (-1) (R2 = 1). The recovery was from 96.76% to 104.15%.
  
  
  CONCLUSIONS
  The method is accurate, simple with a good reproducibility. It can be used to control the quality of E. fortune.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences Peking Union Medical College, Beijing 100193, China. liudongjing1101@sina.com
authors.forename: Dongjing
authors.initials: D
authors.lastname: Liu
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Zhao
authors.forename: Jian
authors.initials: J
authors.lastname: Xue
authors.forename: Shilin
authors.initials: S
authors.lastname: Chen
authors.forename: Qingya
authors.initials: Q
authors.lastname: Bian
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D036602:Eupatorium / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000032:analysis*
chemical_list: D004365:Drugs, Chinese Herbal; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C024714:caryophyllene