Separation and purification of salvianolic acid B and rosmarinic acid from Salvia miltiorrhiza Bge. by pH-zone-refining counter-current#br# chromatography
 
LI Huai-zhi,GONG Cheng-yu,LI Yun,YANG Peng, LI Jia, WANG Xiao
SHANDONG SCIENCE . 2016, (3): 13 -17 .  DOI: 10.3976/j.issn.1002-4026.2016.03.003