HP Data Explorer 4 Series Manual de usuario Pagina 383

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Peak Detection and Labeling Troubleshooting
Data Explorer
Software Users Guide 9-21
9
Spectrum peaks labeled
with incorrect charge state
when charge state labels
are selected
(continued)
Charge state
determination parameters
are set such that peaks
are determined to have no
charge
Adjust parameters. See:
•“Peak Processing
parameters
(spectrum data only)
on page 3-26
Section 3.2.5,
Charge State
Determination and
Examples
Noise between isotope
peaks is detected
Increase %Base Peak
Intensity or %Max Peak
Area to eliminate noise.
See Basic Settings
(spectrum data only) on
page 3-22.
Apply noise filter. See
Section 5.7, Noise
Filtering/Smoothing.
Monoisotopic peak not
labeled correctly
Peak detection charge
state parameters are not
set correctly, the software
is identifying the tallest
peak in a cluster as the
monoisotopic peak
Adjust parameters to
correctly identify the
monoisotopic peak. See
Peak Processing
parameters (spectrum
data only) on page 3-26.
Table 9-12 Charge State and Isotope Determination TroubleshootingMariner
Only (Continued)
Symptom Possible Cause Action
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