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Determination of 2"-O-Galloylhyperin in Pyrola calliantha H. Andres Contents of General Flavonoides in Epimedium acuminatum Franch. and Its Differently processed Products DETERMINATION OF FLAVONOIDS IN GLYCYRRHIZA URALENSIS FISCH WITH ULTRAVOBLET SPECTROPHOTOMETRY Quantitative　Determination　of　Ursolic　Acid　in　Herba Cynomorii by　Ultravioley　Spectrophotometry Comparison of total flavonoids content in 14 species of Camellia sect.Chrysantha Determination of Adenosine in Fritilaria Bulbs by Ultraviolet Spectrophotometry Determination of Lignolytic Activity in Wood-rot Fungi by Ultraviolet Spectra photometry Contents of effective components in flowers of Eriobotrya japonica