I don't know about nitrocellulose membranes, but you may want to check:
Jeronimo de Andrade Rodrigues, Jeanne Combrink and Wolf F. Wolf,
Derivatization of Polyvinylidene Difluoride Membranes for the Solid-Phase
Sequence Analysis of a Phosphorylated Sea Urchin Embryo Histone H1 Peptide,
Anal. Biochem. 216, 365-372, (1994).
Jacek Mozdzanowski
Bioanalytical Sciences
SmithKline Beecham