Applied Biosystems Data Explorer 4 Series User Manual page 155

Label
Mass Labels with Apex or Centroid mass.
NOTE: If you create a custom user label for a mass, the user label is
displayed instead of the mass. For more information, see
Section 3.5.3, Setting Custom Peak Labels.
Mass Shifts all peak labels by the value entered (either positive or
difference negative) and can be used to calculate mass differences from a
from the reference peak.
selected
Right-click-drag across the reference peak to enter the negative of
peak
the value of the peak in the Mass difference text box, then click OK.
NOTE: This The reference peak is labeled with zero, and all the other labels are
label was plus or minus their mass difference from the reference peak.
previously
This label is useful to display neutral losses and adducts on a given
called Mass
peak.
Offset.
Mass Labels peaks with a mass relative to the adjacent labeled peak of
difference lower m/z.
between
adjacent
peaks
5. Select the Mass Type (peak apex or peak centroid).
6. Select the Peak Mass Label Type:
Description
Data Explorer
Peak Labeling
™
Software User's Guide
3
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