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Capillary‐channeled polymer (C‐CP) fibers are demonstrated as a selective stationary phase for phosphopeptide analysis via LC–MS. Taking advantage of the oxidative self‐polymerization of dopamine under alkaline conditions, a simple system involving a dilute aqueous solution of 0.2% w/v dopamine hydrochloride in 0.15% w/v TRIS buffer, pH 8.5 was utilized to coat polydopamine onto nylon 6 C‐CP fibers...
DOI: 10.1002/elps.201900392
The cover picture shows the application of functionalized nylon capillary‐channeled polymer (C‐CP) fibers for the selective capture of phosphopeptides in complex protein digest samples. The modification process takes advantage of the oxidative polymerization of dopamine, forming a uniform polydopamine coating on the fiber surface. The binding of Fe3+ ions is robust and...
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