title: [Determination of total flavonoids and dihydromyricetin in Ampelopsis grossedentala (Hand-Mazz) W. T. Wang].
abstract: OBJECTIVE
  To establish a method for the assay of total flavonoids and dihydromyricetin in A. grossedentala.
  
  
  METHODS
  The flavonoids were determined by spectrophotometry and dihydromyricetin by TCL-scanner.
  
  
  RESULTS
  The content of flavonoids was 43.4%-44.0%, RSD 1.56%-2.62% and the content of dihydromyricetin was 37.4%-38.5%, RSD 1.85%-2.65%.
  
  
  CONCLUSIONS
  The method is rapid, simple, accurate and good for the determination of total flavonoids and dihydromyricetin in A. grossedentala.
authors.affiliation: Division of Pharmacy, Hunan College of TCM, Changsha 410007, Hunan, China.
authors.forename: G X
authors.initials: GX
authors.lastname: He
authors.forename: G
authors.initials: G
authors.lastname: Pei
authors.forename: T D
authors.initials: TD
authors.lastname: Zhou
authors.forename: X X
authors.initials: XX
authors.lastname: Zhou
mesh_terms: D032421:Ampelopsis / Q000737:chemistry*; D005419:Flavonoids / Q000032:analysis*; D044948:Flavonols; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D005419:Flavonoids; D044948:Flavonols; C472036:dihydromyricetin