title: [Determination of o-methylflavinantine in a Tibetan medicine Meconopsis quintuplinervia by HPLC].
abstract: OBJECTIVE
  To develop an HPLC method for the determination of a Tibetan medicine Meconopsis quintuplinervia.
  
  
  METHODS
  A Hypersil-Keystone-C18 column (4.6 mm x 250 mm, 5 microm) was used with the isocratic elution of acetonitrile and 0.012% glacial acetic acid. The flow rate was 1.0 mL x min(-1), and the detection wavelength was set at 237 nm.
  
  
  RESULTS
  The linear range of 0-methylflavinantine was 0.2-2.4 microg (r = 0.999 7). The average recovery was 96.26%.
  
  
  CONCLUSIONS
  The developed method was reliable, and can be used for the quality control of M. quintuplinervia Regel.
authors.affiliation: Gansu College of Traditional Chinese Medicine, Lanzhou 730000, China. shx7712@163.com
authors.forename: Xia
authors.initials: X
authors.lastname: Shi
authors.forename: Fang
authors.initials: F
authors.lastname: Cheng
authors.forename: Mei
authors.initials: M
authors.lastname: Guo
authors.forename: Jing
authors.initials: J
authors.lastname: Shao
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000737:chemistry; D009019:Morphinans / Q000032:analysis*; D028101:Papaveraceae / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D009019:Morphinans; C024736:2-methylflavinantine