A silica-bonded bovine serum albumin(BSA) chiral monolithic stationary phase for capillary electrochromatography(CEC) was introduced. An inorganic-organic hybrid monolithic column was firstly prepared by sol-gel chemi...A silica-bonded bovine serum albumin(BSA) chiral monolithic stationary phase for capillary electrochromatography(CEC) was introduced. An inorganic-organic hybrid monolithic column was firstly prepared by sol-gel chemistry with homogeneously distributed aminopropyl groups throughout the silica matrix. Then the chiral stationary phase was synthesized by the in situ covalent immobilization of BSA on the monolithic column activated with glutaraldehyde. The effects of pH value and concentration of phosphate buffer on the separation of D,L-tryptophan were investigated. The separation factor of D,L-tryptophan reached 3.37 on CEC mode.展开更多
文摘A silica-bonded bovine serum albumin(BSA) chiral monolithic stationary phase for capillary electrochromatography(CEC) was introduced. An inorganic-organic hybrid monolithic column was firstly prepared by sol-gel chemistry with homogeneously distributed aminopropyl groups throughout the silica matrix. Then the chiral stationary phase was synthesized by the in situ covalent immobilization of BSA on the monolithic column activated with glutaraldehyde. The effects of pH value and concentration of phosphate buffer on the separation of D,L-tryptophan were investigated. The separation factor of D,L-tryptophan reached 3.37 on CEC mode.
