Preparation of reference substances of vitexin, hyperoside and isoquercitrin from Crataegi Folium extract
WEN Lei, LIN Yun-liang, GAO Hong-mei, LI Feng, JIANG Jiao-jiao, SONG Xiang-yun, FU Rui-ming, WANG Dai-jie
SHANDONG SCIENCE . 2017, (4): 13 -18 .  DOI: 10.3976/j.issn.1002-4026.2017.04.003