Establishment and evaluation of  HPLC method for detection of concentration  of oleanolic acid-3-O-β-D- pyran glucuronide in Xinlüning capsule 
WANG Shu-qin,CUI Dong-bin
Journal of Jilin University(Medicine Edition) . 2014, (02): 446 -449 .  DOI: 10.13481/j.1671-587x.20140245