The preparation process of γ-Al2O3 nanofiltration membranes were studied by N2absorption and desorption test and retention rate vs thickness gradient curve met
A new abietane diterpenoid, orthosiphonol (11-methoxy-12, 14-dihydroxy-8, 11, 13-abieta trien-7-one) (1) together with known 11-hydroxysugiol (2) were isolated
Two new phenolic glycosides, everninic acid methyl ester-2-O-b-D- xylopyran- osyl-(16)-b-D-glucopyranoside 1 and 7-hydroxy-5-methoxyphthalide-7-b-D- xylopyranos