Figure 1.
HPLC-UV Chromatograms of the total extract from the root bark of O. horridus and fractions chromatographed from Dianion HP20 resin column at UV λ=202 nm. A: total extract (10mg/mL); B–F: 0% (10mg/mL), 30% (10mg/mL), 50% (10mg/mL), 70% (5mg/mL), and 100% (10mg/mL) ethanol eluted fractions from Diaion HP-20 column.