title: [Determination of triptolide in Tripterygium total terpenoids tablets by HPLC].
abstract: OBJECTIVE
  To develop a HPLC method for determination of triptolide in tripterygium total terpenoids tablets.
  
  
  METHODS
  A Lichrospher CN column was used with ethanol and water for gradient elution. The detection wavelength was set at 255 nm.
  
  
  RESULTS
  The linear relationship of the concentrations and peak areas was good in range of 0.742-59.4 microg x mL(-1) (r = 0.9998). The average recovery was 99.2%, RSD% = 1.7%.
  
  
  CONCLUSIONS
  The method is simple, rapid and accurate and can be used for quality control of the tablets.
authors.affiliation: Nanjing Zhongshan Pharmaceutical Factory, Nanjing 210012, China.
authors.forename: Cun-hai
authors.initials: CH
authors.lastname: Pu
authors.forename: Ming-fang
authors.initials: MF
authors.lastname: He
authors.forename: Xiao-qian
authors.initials: XQ
authors.lastname: Zhanag
authors.forename: Jia
authors.initials: J
authors.lastname: Shen
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004224:Diterpenes / Q000032:analysis*; D004852:Epoxy Compounds; D010616:Phenanthrenes / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D013607:Tablets; D013729:Terpenes / Q000008:administration & dosage / Q000737:chemistry* / Q000302:isolation & purification; D029757:Tripterygium / Q000737:chemistry*
chemical_list: D004224:Diterpenes; D004852:Epoxy Compounds; D010616:Phenanthrenes; D013607:Tablets; D013729:Terpenes; C001899:triptolide