One kind of built,in silica adsorbent, which has high adsorption selectivity to rutin, was synthesized using molecular imprinting technology by the following st
The acetalization and ketalization of various aldehydes and ketones with catechol by using HY zeolite as catalyst were studied.Effect of the reaction time,mole
Thermo-sensitive poly (N-isopropylacrylamide)(PNIPA) hydrogel with fast response rate was prepared by polymerizing N-isopropylacrylamide (NIPA) in an aqueous hy
A series of gelatin microspheres (GMs) were prepared through emulsification-coacervation method in water-in-oil (w/o) emulsions. The influence of preparation pa
To study the bioactive constituents from Andrographis paniculata,two compounds were isolated and purified by column chromatography on AB-8 macroporous adsorptio