[Objective] Aimed to investigate the possible contribution of β-cyclodextrin to chromatographic separation of flaovonoid.[Method] By choosing 4 flavonoid aglycones from Ginkgo biloba extract as model compounds,the inclusion phenomena of β-cylcodextrin on structural analogs under the solution condition was studied.The inclusion interaction of β-cylcodextrin with different flavonoid aglycones was determined by phase solubility analysis.[Result] Supermolecular inclusion constants of β-cylcodextrin with quercet...