The positive fast atom bombardment (FAB) mass spectra of 15 N-carbobenzyloxy derivatives of α-amino acids are presented together with those of some synthetic peptides containing other widely employed protecting groups. The data obtained allow a fragmentation pattern to be established for the N-carbobenzyloxy moiety and to obtain detailed structural information on the main fragment ions. A study of the ion current ratio vs. time pattern shows that important fragments derive from the parent protonated molecule through FAB-induced condensed-phase reactions.
Fast atom bombardment mass spectrometry of carbobenzyloxy-protected amino acids and peptides / B. Danieli, F.M. Rubino, A. Cremonesi. - In: OMS, ORGANIC MASS SPECTROMETRY. - ISSN 0030-493X. - 24:4(1989 Apr), pp. 225-229.
Titolo: | Fast atom bombardment mass spectrometry of carbobenzyloxy-protected amino acids and peptides |
Autori: | DANIELI, BRUNO (Primo) RUBINO, FEDERICO MARIA (Secondo) CREMONESI, ALFREDO (Ultimo) |
Parole Chiave: | amino acid; derivative; mass spectrometry |
Settore Scientifico Disciplinare: | Settore CHIM/01 - Chimica Analitica Settore CHIM/06 - Chimica Organica |
Data di pubblicazione: | apr-1989 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/oms.1210240405 |
Appare nelle tipologie: | 01 - Articolo su periodico |
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