Commands:
View > Ion Group
View > Unlink Ion Group
View > Charge State Determination
Sequences > m/z Chromatogram
Arcadiate > Preferences... > Quantification

An ion group lists chromatographic ions defined by their m/z value and retention time. They are used to quantify targeted ions.

An Ion Group view can be generated by clicking the Add View button in the list view of a data collection or by using the command View > Ion Group. An ion group is used to determine ion volumes of specific chromatographic ions.

Activities:
  • Determination of the ion volumes in a specific chromatogram: dropping the link icon onto a chromatogram view
  • Displaying the quantitative chromatogram, a chromatogram of a centroided, noise reduced ion: clicking onto the blue colored ion volume number of an ion
  • Editing the ion volume number: displaying its chromatogram and changing its selection by ⌘ click-dragging over the chromatogram (only when the ion volume was determined by integration - see Arcadiate > Preferences... > Quantification: by integration).
  • Re-establishing the default ion volume figure: clicking on a blue colored ion volume figure of the ion
  • Unlinking the ion group from a chromatogram: command View > Unlink Ion Group
  • Determining the ion volumes in several chromatograms: dropping the link icon onto a chromatogram group whose chromatograms are aligned. The ion group has to be linked with a chromatogram that is part of the group to define the retention times of the ions in the other chromatograms.
  • Charge state determination of ions in a chromatogram: the command View > Charge State Determination if the ion group is associated with a chromatogram
  • Display the m/z chromatogram of a selected ion: Sequences > m/z Chromatogram