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HPLC chromatograms of standard solutions (a) and NI-01 sample (b) at 225 nm (I), 254 nm (II), 270 nm (III), 275 nm (IV), 280 nm (V), 285 nM (VI), and 325 nm (VII). 1: gallic acid, 2: chlorogenic acid, 3: caffeic acid, 4: isochlorogenic acid A, 5: benzoic acid, 6: coumarin, 7: arctiin, 8: cinnamic acid, 9: cinnamaldehyde, 10: paeonol, 11: arctigenin, 12: schisandrin.
