peptide fragment ion

https://doi.org/10.1351/goldbook.09758

Product ion which originates in a peptide precursor ion fragmentation process.

Note: Peptide fragment ions are generated in pairs according to the kind of mechanism that dissociates the chemical bonds around the peptide bond.
Source:
PAC, 2018, 90, 1121. (Terminology of bioanalytical methods (IUPAC Recommendations 2018)) on page 1158 [Terms] [Paper]