HP Data Explorer 4 Series - Manual (Page 155)

Peak Labeling
Data Explorer ™ Software User’s Guide 3-57
3
5. Select the Mass Type (peak apex or peak centroid).
6. Select the Peak Mass Label Type:
Label Description
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
difference
from the
selected
peak
NOTE: This
label was
previously
called Mass
Offset.
Shifts all peak labels by the value entered (either positive or
negative) and can be used to calculate mass differences from a
reference peak.
Right-click-drag across the reference peak to enter the negative of
the value of the peak in the Mass difference text box, then click OK.
The reference peak is labeled with zero, and all the other labels are
plus or minus their mass difference from the reference peak.
This label is useful to display neutral losses and adducts on a given
peak.
Mass
difference
between
adjacent
peaks Labels peaks with a mass relative to the adjacent labeled peak of
lower m/z.