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Fused-silica capillary columns (100 µm I.D.) englobing a porous monolithic stationary phase were prepared by in situ copolymerization of 2-ethylhexyl methacrylate, ethylene glycol dimethacrylate and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) in the presence of a porogenic mixture containing 1-propanol, 1,4 butanediol and water. The influence of the monomers ratio and the porogen solvent composition...
The direct resolution of neutral amino acid and amino alcohol derivatives by pressurized capillary electrochromatography (p-CEC) is reported. Separations were performed on columns packed with multiple-interaction based chiral stationary phases (CSPs) in reversed-phase mode, using borate buffer/acetonitrile mixtures as the eluent. Two CSPs were used: 3,5-dinitrobenzoyl-(R)-phenylglycine (DNB-PGLY)-...
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