title: [Determination of GA, GB and GC in total lactone of ginkgo (TLG) raw material].
abstract: OBJECTIVE
  To determine the different lactone content of 10 batches of TLG raw material.
  
  
  METHODS
  RP-HPLC-ELSD were used to determine ginkgolide A, B, C(GA, GB, GC).
  
  
  RESULTS
  Content of GA, GB and GC were different but TLG very high (all > 90%).
  
  
  CONCLUSIONS
  The quality of TLG could be affected by habitat, season and the preparation method.
authors.affiliation: Guangzhou University of TCM, Guangzhou 510405.
authors.forename: Qingfei
authors.initials: Q
authors.lastname: Liu
authors.forename: Liling
authors.initials: L
authors.lastname: Zhou
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004224:Diterpenes / Q000032:analysis*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D020441:Ginkgo biloba / Q000737:chemistry*; D046934:Ginkgolides; D007783:Lactones / Q000032:analysis*; D010598:Pharmacognosy; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D046934:Ginkgolides; D007783:Lactones; C058295:ginkgolide C; C045856:ginkgolide B; C477042:ginkgolide A