Abstract
A silica-based stationary phase bearing both hydrophilic hydroxyl and amino groups was developed by covalently bonding a small molecular N,N-dimethylamino 1,3-propanediol moiety onto silica beads via copper(I)-catalyzed Huisgen azide-alkyne 1,3-dipolar cycloaddition (CuAAC). This new stationary phase showed good HILIC characteristics and high column efficiency (the theoretical plate number is up to 37000platesm(-1) in the case of inosine) in the separation of polar compounds, such as nucleosides and bases, organic acids, cephalosporins, and carbapenems.
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