科研之友
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摘要
It is shown through reversed phase high performance liquid chromatography that a characteristic feature of such abundant natural flavonoids as flavon-3-ols is an anomalously strong antibate dependence of their retention indices (RI) on the organic solvent concentration (C) in the eluent, dRI/dC < 0. In order to interpret this anomaly, the specific optical rotation values [alpha] (D) (20) of natural (+)-(2R,3R)-dihydroquercetin in different solvents are compared, confirming the reverse formation of hydrated flavonoids in aqueous solutions.
- 出版日期2011-9
