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Anion-exchange (AEX) columns were prepared by on-column polymerization of acrylates and methacrylates containing tertiary amino or quaternary ammonium groups on monolithic silica in a fused silica capillary modified with anchor groups. The columns provided a plate height (H) of less than 10μm at optimum linear velocity (u) with keeping their high permeability (K=9–12×10 −14 m 2 )....
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