title: [Quantitative determination of cholic acid in Calulus Bovis].
abstract: OBJECTIVE
  To establish a method to determine the Content of cholic acid in Calulus Bovis.
  
  
  METHODS
  The content was determined by TLCS.
  
  
  RESULTS
  Recovery rate was 96.54%, RSD was 1.68%.
  
  
  CONCLUSIONS
  Accurate and reproducible, this method can be used for the quality control of Calulus Bovis.
authors.affiliation: Beijing Municipal Institute for Drug Control, Beijing 100035.
authors.forename: Z
authors.initials: Z
authors.lastname: Chang
authors.forename: F
authors.initials: F
authors.lastname: Di
authors.forename: F
authors.initials: F
authors.lastname: Zhou
mesh_terms: D000818:Animals; D002417:Cattle; D002769:Cholelithiasis / Q000737:chemistry*; D019826:Cholic Acid / Q000032:analysis*; D002855:Chromatography, Thin Layer; D003720:Densitometry; D008419:Materia Medica / Q000032:analysis*
chemical_list: D008419:Materia Medica; D019826:Cholic Acid