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Chromatogram of Centella asiatica (雷公根 léi gōng gēn) extracts in HPLC. (A) Chromatogram of standards with HPLC method. (B) Chromatogram of Centella asiatica extracts with the HPLC method. Standard solutions including madecoside (MS), asiaticoside (AS), madecassic acid (MA) and asiatic acid (AA).
