HP Data Explorer 4 Series User Manual

Page 378

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Chapter 9 Troubleshooting

9-16

Applied Biosystems

9

Peaks are not detected or
labeled

(continued)

Analyzing masses above
20,000 Da

Increase Mass Resolution
setting in Peak Detection
Setup. See Section 3.2.2,
Strategy for Voyager Peak
Detection.

%Max Peak Area set too
high

Decrease. See
Section 3.2.2, Strategy for
Voyager Peak Detection.

%Base Peak Intensity set
too high

Set to 0. Adjust %Max
Peak Area to optimize
peak detection for Voyager
data. See Section 3.2.2,
Strategy for Voyager Peak
Detection.

When creating a custom
label for a spectrum, you
right-click-drag across a
peak to identify the peak,
and an extracted ion
chromatogram is created
instead

The Chromatogram
window was active when
you selected Peak Label
from the Display menu

Make sure the Spectrum
window is active before
selecting Peak Label from
the Display menu.

Table 9-10 Peak Detection and Labeling Troubleshooting—Mariner and Voyager

(Continued)

Symptom

Possible Cause

Action

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