Eucommia ulmoides Oliv. is a kind of aboundant resources in China. The main active chemical constituents are flavonoids, iridoids, lignans and phenylpropanoids, which are valuable in appliaction. Recent research shows that the valency of flavone aglycone is higher than flavone glycosides. In this dissertation, based on the establishment of the rapid detection method of HPLC, the leaf of Eucommia ulmoides Oliv. was used to prepare the flavone aglycones by using acid hydrolysis. Then their were enriched with ...