title: [Simultaneous determination of 4 nortriterpenoids in Schisandra chinensis extract by HPLC].
abstract: OBJECTIVE
  To determine 4 nortriterpenoids (de-hydroxy arisanlactone D, 25-hydroxy schindilactone, schindilachone A, lancifodilactone D) in Schisandra chinensis extract by HPLC.
  
  
  METHODS
  The analysis was performed on a waters symmetry column (4.6 mm x 250 mm, 5 microm) with the mobile phase of acetonitrile-water (33:67) at a flow rate of 1 ml x min(-1). The column temperature was set at 37 degrees C, and the detector wavelength was 264 nm.
  
  
  RESULTS
  The linear ranges of de-hydroxy arisanlactone D, 25-hydroxy schindilactone, schindilachone A, and lancifodilactone D are 0.075-1.800, 0.098-0.980; 0.095-0.950, and 0.053-0.530 microg, respectively, and the average recoveries were 98.57%, 96.44%, 97.96%, and 97.27%, respectively.
  
  
  CONCLUSIONS
  The four nortriterpenoids were well separated by this method, and it could be used to determine the four nortriterpenoids in Schisandra chinensis extract.
authors.affiliation: China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Han
authors.forename: Dekun
authors.initials: D
authors.lastname: Li
authors.forename: Dazheng
authors.initials: D
authors.lastname: Zhou
authors.forename: Ruichao
authors.initials: R
authors.lastname: Lin
authors.forename: Lifang
authors.initials: L
authors.lastname: Liu
authors.forename: Zhengliang
authors.initials: Z
authors.lastname: Ye
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D032141:Schisandra / Q000737:chemistry*; D014315:Triterpenes / Q000032:analysis*
chemical_list: D014315:Triterpenes