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HPLC chromatograms of mixed standard, sample TL−C−60E, and sample TL−C−80E with the detection wavelength at 325 nm. The peaks indicate (a) gallic acid, (b) caffeic acid, (c) rutin, (d) rosmarinic acid, (e) luteolin, (f) quercetin, (g) apigenin, and (h) kaempferol.
