Fig. 1.

HPLC profiling of the water extract of Glycyrrhiza uralensis. The radices of Glycyrrhiza uralensis were ground and extracted with diH₂O. The extract was profiled on a BosChroma ODS-AQ column (4.6×150 mm, 5 mm particle size), using acetonitrile and H₂O containing 0.1% trifluoroacetic acid (32:68) as a mobile phase. Liquiritin and glycyrrhizic acid were detected at 13.440 and 30.932 min with a UV detector. Upper panel is HPLC chromatogram of standard compounds; lower panel is a sample of Glycyrrhiza uralensis water extract.