Tag Archives: microspheric

Preparation of chitin microspheric immobilized papain

Application Number: 00117351Application Date: 2000.08.11Publication Number: 1285403Publication Date: 2001.02.28Priority Information: International: C12N11/10Applicant(s) Name: Hua'nan Agriculture Univ.Address: Inventor(s) Name: Li Hong;Xu Fengcai;Wang WeijunPatent Agency Code: 44201Patent Agent: wu hongdaAbstract The present invention uses chitosan as raw material to prepare chitosan microsphere, adds the chitosan microsphere to papain solution, and adopts the process of adsorption-crosslinking reaction so… Read More »

Process for preparing high purity microspheric uniform pore size silica gel for high efficiency liquid phase chromatography

Application Number: 00123252Application Date: 2000.11.15Publication Number: 1351958Publication Date: 2002.06.05Priority Information: International: B01J13/02;C01B33/152;C01B33/157Applicant(s) Name: Dalian Inst. of Chemical Physics, Chinese ACademy of SciencesAddress: Inventor(s) Name: Yang Xinli;Wang Junde;Liu XueliangPatent Agency Code: 21002Patent Agent: zhang chenAbstract During the preparation of the high-purity microspheric silica gel, tetraethoxy silane is first hydrolyzed partially to produce viscous liquid polyethoxy silane,… Read More »

Preparation of high-purity microspheric silica gel for high efficient liquid phase chromatograph

Application Number: 00110333Application Date: 2000.04.19Publication Number: 1318514Publication Date: 2001.10.24Priority Information: International: C01B33/14Applicant(s) Name: Dalian Inst. of Chemical Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Yang Xinli;Wang Junde;Liu XueliangPatent Agency Code: 21002Patent Agent: zhang chenAbstract By using tetraoxethyl silicane as material and through two-step reaction, including the first step of partially hydrolyzing tetraoxethyl silicane into viscous… Read More »