Ionic Liquids-based Microwave-assisted Extraction of Biochanin A and Genistein from Dalbergia odorifera T.Chen Leaves Determination of biochanin A and formononetin in Trifolium pratense extract by HPLC-ELSD and DAD The Extraction Process of Biochanin A from Dalbergia odorifera T. Chen Leaves Determination of daidzein,genistein,formononetin,and biochanin A in Millettla nitida var.hirsutissima extract by RP-HPLC Optimizmum quantitation determination of extract from Trifolium pratense