title: [Determination of loganin in Pterocephalus hookeri by HPLC].
abstract: OBJECTIVE
  To develop an HPLC method for determination of loganin in Pterocephalus hookeri.
  
  
  METHODS
  The analysis was performed on a Welchrom C18 column (4.6 mm x 250 mm, 5 microm) with acetonitrile-water (12:88) as the the mobile phase at a flow rate of 1 mL x min(-1) and the detection wavelength was 240 nm.
  
  
  RESULTS
  The peak areas and injection amounts of loganin had a good linear relationship at the range of 0.06-1.2 microg. The average recovery was 97.0%, and the RSD was 1.4%.
  
  
  CONCLUSIONS
  The method is simple, accurate, and can be used for its quality control.
authors.affiliation: College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
authors.forename: De
authors.initials: D
authors.lastname: Tan
authors.forename: Rui
authors.initials: R
authors.lastname: Gu
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xianli
authors.initials: X
authors.lastname: Meng
authors.forename: Xianrong
authors.initials: X
authors.lastname: Lai
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D039823:Iridoids / Q000032:analysis*; D038861:Medicine, Tibetan Traditional; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D039823:Iridoids; C059516:loganin