Introducing the MSQ
The Data System ________________________________________________________________________
Right-click on the server to display a menu:
Choose
Instrument Tune and Calibration
to display the Instrument
Tuning and Calibration Wizard.
•
Figure 1-24. The MSQ Instrument Tuning and Calibration Wizard
Choose
Tune
to display the Tune page.
•
•
•
Choose
Pump
to pump down the MSQ or
Vent
to vent the MSQ.
Choose
Exit
to close the server. If Xcalibur is still running, this will not
be allowed and an error message will be displayed.
Raw Data
Xcalibur acquires data in a “raw” file. Raw data can be viewed as
chromatograms and mass spectra (see Figure 1-25).
The term
mass spectrum
refers to a plot of mass-to-charge ratio (m/z)
versus relative abundance information. The mass spectrum at a particular
time in an analytical run will reveal a “snapshot” of the data at that time.
The chromatogram is a plot of relative abundance versus time. Xcalibur
produces the following types of chromatograms: total ion current (TIC)
chromatogram, base peak chromatogram, mass range chromatogram, and
analog UV chromatogram.
1-30
__________________________ MSQ Hardware Manual ____________________________
