PMC10120814_01
Liquid chromatogram of PGD sample and mixed standard, (A), Paeoniflorin. (B), Liquiritin. (C), Glycyrrhizic acid.
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The contents of the three known pharmacologically active components (Paeoniflorin, Liquiritin, and Glycyrrhizic acid) in PGD were determined by reversed-phase high performance liquid chromatography (HPLC), as shown in Figure 1.