Characterization of neutral loss peaks in the fragmentation pattern of peptide in Collision Induced Dissociation spectra

The fragmentation statistics were analyzed to study the fragmentation characteristics of quadrupole ion trap CID (Collision-Induced Dissociation) spectra extracted from the human peptide library in the NIST library. Instead of using intensity information, usually considered earlier, here the frequency of occurrence of the fragment ion peaks and its neutral loss events were analyzed with respect to the cleavage position along the peptide backbone...