EXTRACTION OF EPHEDRINE FROM EPHEDRA SINICA STAFF LEACH LIQUOR Ⅱ.——Performance of Extraction Column
Su YUAN-FU, WANG GONG, FANG YI-XING, ZHOU JIAN-HONG Hua Tung Institute of Chemical Technology) (Da Tung Ephedrine Works
CIESC Journal . 1958, (1): 34 -50 .