Mass spectrometry of permethylated peptide derivatives; extension of the technique to peptides containing arginine or methionine.
D001120:Arginine / Q000032:analysis*; D008715:Methionine / Q000032:analysis*; D008722:Methods; D008745:Methylation; D010455:Peptides / Q000032:analysis*; D013057:Spectrum Analysis
D010455:Peptides; D001120:Arginine; D008715:Methionine