Screening and identifying antioxidants from Oplopanax elatus using 2,2ʹ-diphenyl-1-picrylhydrazyl with off-line two-dimensional HPLC coupled with diode array detection and tandem time-of-flight mass spectrometry

The root of Oplopanax elatus (Nakai) Nakai has a well‐known history of use for the treatment of diseases such as neurasthenia, cardiovascular disorders, and cancer by the native people in northeast China. It is important to screen and identify the bioactive molecules from its root rapidly. Hereby, a...

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