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(a) HPLC chromatogram of ethanolic extract of N. lappaceum rind. (b) HPLC chromatogram of geraniin crystals. Column - Chromolith Performance RP-18, mobile phase-water (Solvent A) and acetonitrile (Solvent B), flow rate- 0.5 mL/min, injection volume- 5μL, abs- 254 nm.
