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HPLC chromatograms of HXZQ-OL (A) Contour plot (190–400 nm) (B) 276 nm. 5-HMF (1), liquiritin (2), narirutin (3), hesperidin (4), isoliquiritin (5), glycyrrhizin (6), honokiol (7) and magnolol (8) were identified. HPLC analysis was described in the materials and methods.
