Commands:
MS/MS Chromatogram > Marker Views > Fragment Ion Group

A fragment ion group view allows to define a set of fragment ions for detection in a chromatographic data set that reflects All Ion Fragmentation (MSE) data.

All Ion Fragmentation data have the characteristic that chromatograms can be generated from fragment masses since like the intact ion data fragment spectra are acquired continuously without selecting a specific precursor mass.

A Fragment Ion Group view is generated by clicking the Add View button of a Fragment Ion Group in the data collection list view or by using the command MS/MS Chromatogram > Marker Views > Fragment Ion Group. The MS/MS Chromatogram menu structure is only visible when the active view is based upon a chromatographic data set generated by All Ion Fragmentation (MSE).

Activities:
  • Adding or removing fragment ions to / from a group: pressing the button
  • Determining possible precursors in an all ion fragmentation chromatogram: dropping the link icon onto a chromatogram spectrum or a chromatogram map. A Precursor List Group view will be generated displaying possible precursors that generated the fragments.