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The chemical composition of YH1 was analyzed using high-performance liquid chromatography (HPLC) with a photodiode array (PDA). Fourteen components, including allantoin, atractylenolide III, berberine, coptisine, ginsenoside Rb1, ginsenoside Re, ginsenoside Rg1, glycyrrhizin, liquiritin, pachymic acid, palmatine, platycodin D, magnoflorin and quercitrin, were detected.
