Simultaneous Determination of Oleanolic Acid and Ursolic Acid in the Leaves of Forsythia suspensa by HPLC-ELSD
ZHAO Shao-hua, LIU Min-yan, WANG Yu-feng, XU Hong-hui, ZHANG Yong-feng, WANG Meng
FOOD SCIENCE . 2012, (2): 224 -226 .  DOI: 10.7506/spkx1002-6630-201202049