title: [Determination and quality assessment of 10 ingredients gentiopicroside and sweroside and so on in Tibetan medicine Jia Di (Swertia chirayita)].
abstract: OBJECTIVE
  To establish a method for determination of 10 ingredients such as gentiopicroside, sweroside, and mangiferin in India swertia, and settle the index components and their limits.
  
  
  METHODS
  By Welch materials AQ-C18 column, determination was conducted by the gradient elution with methanol and 0.4% formic acid as mobile phase, with column temperature 30 degrees C, flow rate at 1.0 mL x min(-1), and 254 nm as the detection wavelength.
  
  
  RESULTS
  The linear relatives of 10 ingredients were good. The method showed the high precision and good reproducibility, and recovery rates were between 97% and 103%. The ingredients of market com-modities varied greatly.
  
  
  CONCLUSIONS
  This method is simple, sensitive, reproducible, and applicable to the determination of the main ingredients in India Swertia. Sweroside and mango glycosides were suggested as the index components for determination in Jia Di (Swertia chirayita), and their content limits are not less than 0.1%, 0.3%, respectively.
authors: Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China. yangchem@126.com
authors: Yong
authors: Y
authors: Yang
authors: Wei-Zao
authors: WZ
authors: Luo
authors: Xiang
authors: X
authors: Liu
authors: Chang-Hua
authors: CH
authors: Wang
authors: Ji-Feng
authors: JF
authors: Zhao
authors: Song-Yun
authors: SY
authors: Qin
authors: Guo-Yue
authors: GY
authors: Zhong
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000032:analysis* / Q000592:standards; D057888:Iridoid Glucosides / Q000032:analysis* / Q000592:standards; D038861:Medicine, Tibetan Traditional; D011786:Quality Control; D029967:Swertia / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D057888:Iridoid Glucosides; C012997:gentiopicroside; C049412:sweroside