Calibrating
69
4
Figure 4-12 Calibrate Window Showing ZQ-4000 Calibration Graphs
Calibration Failure
Calibration failures result from many causes. If too many mass peaks are missed, check
data in the on-screen Calibration report. If the missed masses appear there, one or more
of the first three causes listed in
likely apply. If the data include these mass
peaks, but they nevertheless go unrecognized during calibration, one or more of the
subsequently listed causes probably induced the failure.
Table 4-2 Calibration Failure Troubleshooting
Symptom
Possible Cause
Corrective Action
No peaks.
No reference sample.
Add reference sample.
No solvent flow into the
source.
Check LC components,
syringe pump, and liquid
line connections.
Multiplier set too low.
Adjust multiplier.
Mean Residual
Error
Summary of Contents for Micromass ZQ 2000
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