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Capture and concentration of peptides

JON R. FISHER
The Dow Chemical Company, 727 Norristown Road, Spring House, PA 19477, USA

Abstract

A new strong cation exchange resin, Amberlite™FPX62, was evaluated for the capture and concentration ofpeptides. The results demonstrated excellent binding capacityfor a range of peptides, even in higher solvent concentrations.Finally, a method was successfully developed for the captureand concentration of a crude insulin feed stream.