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HPLC fingerprint profiles of S. baicalensis extracts. Marker components (baicalein, baicalin, apigenin, and chrysin), as well as the MeOH (a), EtOAc (b), and chloroform (c) extracts, were analyzed by HPLC with C-18 reverse phase column, and eluents are detected at 280 nm with a 2996 PDA detector.
