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Comparative chromatograms of EXD and its three different fractions (EA, BU, WA) with seven standard compounds at different UV detection wavelengths (345 nm) 1. Mangiferin; 2. Ferulic acid; 3. Curculigoside; 4. Icariin; 5. Jatrorrhizine; 6. Palmatine; 7. Berberine.
