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Chapter 3 Peak Detection and Labeling
3-62 Applied Biosystems
3
Figure 3-23 User Label Setup Dialog Box
4. Select the Label Type (spectra only):
• Mass—Labels with Apex or Centroid mass.
• Mass difference from adjacent peaks—Applies
the labels to peaks that have the specified mass
difference relative to the adjacent labeled peak of
lower m/z.
5. Select Match Charge State (spectra only) if you want the
charge state of a peak evaluated before applying the user
label. When this function is enabled, a peak must occur
within the specified Mass Tolerance (described below),
and have the specified charge state before the user label
is applied.
Hint: The Match Charge State function allows you to
screen out peaks that are within the specified Mass
Tolerance, but are not the charged species you are
interested in.
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