title: [Investigation of multi-composition in traditional Chinese medicine by module calculation].
abstract: OBJECTIVE
  To establish a method for the determination of multi-composition in traditional Chinese medicine by module calculation.
  
  
  METHODS
  In view of the law of lambert-beer, the modulue of two compositions was converted on basis of peak area by HPLC.
  
  
  RESULTS
  The modulues of four groups were gotten and the effects of validation were well.
  
  
  CONCLUSIONS
  The method was feasible and could be used within a certain range.
authors.affiliation: Beijing Institute of Drug Control, Beijing 100035, China. muzizheng11@263.net
authors.forename: Zheng
authors.initials: Z
authors.lastname: Li
authors.forename: Xu
authors.initials: X
authors.lastname: Wang
authors.forename: Guo-qing
authors.initials: GQ
authors.lastname: Wu
authors.forename: Xiao-qian
authors.initials: XQ
authors.lastname: Zhang
authors.forename: Ying
authors.initials: Y
authors.lastname: Fang
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D008419:Materia Medica / Q000737:chemistry; D008516:Medicine, Chinese Traditional
chemical_list: D004365:Drugs, Chinese Herbal; D008419:Materia Medica