title: [Determination of alpha-cyperone in Rhizoma Cyperi oil by HPLC].
abstract: OBJECTIVE
  To establish a method deteminating alpha-cyperone in Rhizome Cyperi oil by HPLC.
  
  
  METHODS
  The determination was carried out by Merck Lichrocart C18 column, with mobile phase consisted of methanol-water (68: 32), and detective wavelength 241 nm.
  
  
  RESULTS
  The calibration curves was linear in the range of 0. 081 - 0. 81 microg/ml (r = 0.9998). The average recovery of loading sample was 99.1%, RSD =2.2%.
  
  
  CONCLUSIONS
  The method is convenient for a good resolution.
authors.affiliation: Guangdong College of Pharmacy, Guangzhou.
authors.forename: Congqing
authors.initials: C
authors.lastname: Liang
authors.forename: Yuansheng
authors.initials: Y
authors.lastname: Luo
authors.forename: Zhaojian
authors.initials: Z
authors.lastname: Zhong
authors.forename: Jun
authors.initials: J
authors.lastname: Fu
authors.forename: Chunyan
authors.initials: C
authors.lastname: Su
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D025924:Chromatography, Supercritical Fluid; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D007659:Ketones / Q000032:analysis*; D019684:Magnoliopsida / Q000737:chemistry*; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D027343:Rhizome / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D007659:Ketones; D009822:Oils, Volatile