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Chapter 5 Examining Spectrum Data
5-12 Applied Biosystems
5
9. Repeat step 7 and step 8 until all desired peaks are in the
matched list.
Eliminating data
points
10. To eliminate unacceptable data points from the
calibration, do either of the following:
• Select the data point (mass) in the Peaks matched
list, then click Delete Selected Match.
• Click Eliminate Fit Outlier. The software deletes
from the calibration the data point with the largest
calibrated Fit Error (difference between the
calibrated mass and the reference mass) as
reported in the Output window (Figure 5-4).
NOTE: The point deleted may not be the point
with the largest Initial Error (difference between the
pre-calibration observed mass and the reference
mass) listed in the Peaks Matched List in the
Manual Calibration dialog box.