SOLID-STATE P-31 NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPIC STUDY OF PHOSPHORYLATED PEPTIDE-RESINS AND PHOSPHORYLATED WOOL KERATIN

Solid-state P-31 n.m.r. spectroscopy was found to be a useful method f or the analysis of phosphorylated peptide-polystyrene resins and permi tted the monitoring of chemical modifications of the phosphate moiety whilst the phosphorylated peptide was bound to the polystyrene support . Solid-state P-31 n.m.r. Spectroscopy was also applied to the analysi s of phosphorylated wool keratin samples and showed that (A) different phosphate functionalities could be identified from the use of particu lar phosphorylation treatments, and (B) the majority of the phosphoryl ative modifications was located on the surface of wool keratin. This t echnique was found to be useful for monitoring the effectiveness of se condary chemical modification treatments on phosphorus trichloride-tre ated wool fabric samples.