title: [Studies on precipitate of Huanglian-Huangqin couples in decoction].
abstract: OBJECTIVE
  Chemical composition of precipitate was researched when Huanglian-Huangqin was decocted.
  
  
  METHODS
  Ployamide column chromatography, TLC and TOF-MS were used.
  
  
  RESULTS
  The precipitate contains berberine, palmatine, jalrorrhizing, epiberberine, copticine, baicaling and wogonoside.
  
  
  CONCLUSIONS
  The precipitate is effective composition in Chinese medical decoction. The research provides new data on medical effects of Huanglian-Huangqin couples.
authors.affiliation: Beijing Medical University, Beijing 100083.
authors.forename: L
authors.initials: L
authors.lastname: Qiao
authors.forename: J
authors.initials: J
authors.lastname: Peng
authors.forename: X
authors.initials: X
authors.lastname: Pu
authors.forename: L
authors.initials: L
authors.lastname: Wei
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D011232:Chemical Precipitation; D039323:Coptis / Q000737:chemistry*; D005419:Flavonoids / Q000032:analysis; D006358:Hot Temperature; D010946:Plants, Medicinal / Q000737:chemistry*; D031364:Scutellaria baicalensis / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D005419:Flavonoids