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世界科学技术-中医药现代化 2008
A Preliminary Study of Gypsum's Effects on Glycyrrhizic Acid in Maxingshigan Decoction
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Abstract:
We studied the effects of gypsum on glycyrrhizic acid concentration in Maxingshigan Decoction.In the study, HPLC was employed to determine acid concentrations in both traditional decoctions with and without gypsum.The measurement was made at an ODS column and a mobile phase of methanol-0.2mol/Lammonium acetate-glacial acetic acid (67:33:1).The detection wavelength was set at 250nm.Test results showed that the glycyrrhizic acid concentration reached 10.3530mg/g in the Maxingshigan Decoction without gypsum,an...
