[Determination of GA, GB and GC in total lactone of ginkgo (TLG) raw material].
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.
Liu
Qingfei
Q
Guangzhou University of TCM, Guangzhou 510405.
Zhou
Liling
L
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*
D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D046934:Ginkgolides; D007783:Lactones; C058295:ginkgolide C; C045856:ginkgolide B; C477042:ginkgolide A