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HSCCC chromatograms of crude extracts of Belamcandae, Peak I isorhamnetin, Peak II irigenin, Peak III hispidulin, solvent system: n-hexane-ethyl acetate-methanol-water (4:5:4:5, v/v); mobile phase: the lower phase; flow rate: 1.2 ml/min; revolution speed 800rpm; detection wavelength: 254 nm; sample size: 100mg of crude sample dissolved in 10 ml of mixture solution of lower phase and upper phase (1:1, v/v) of the solvent system
