Thermo Scientific TSQ Quantum GC, Руководство пользователя

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6
Maintenance
Adding Calibration Compound
Thermo Scientific TSQ Quantum XLS and TSQ Quantum GC User Guide 117
Adding Calibration Compound
The calibration compound is a liquid whose mass spectrum of ions is used to tune and
calibrate the TSQ Quantum XLS and TSQ Quantum GC mass spectrometers. The mass
spectrometer uses FC-43 as its calibration compound. Although you cannot
visually
determine when a calibration compound needs to be added, Xcalibur Automatic Tune
produces an error message indicating that “the intensity of calibration gas ions is too low.”
This message indicates that calibration compound must be added. However, there are many
factors other than a decrease in the calibration compound that can cause a shortage of
calibration gas ions. As a rule, add calibration compound once a year.
Y To add calibration compound
1. Shut down and vent the mass spectrometer. See “Shutting Down the System Completely”
on page 53.
2. Lower the GC oven and transfer line temperatures to 30 °C and allow them to cool before
continuing.
3. Move the GC far enough from the mass spectrometer to access the calibration compound
vial compartment. See the location of the calibration compound vial compartment in
Figure 60 .
Tools Needed
• Calibration compound (P/N 50010-02500)
• Syringe (P/N 36502019)
• 9/16 in., open-ended wrench
Frequency
Yearly or as needed
CAUTION The transfer line is hot. Allow it to cool to room temperature before
moving the GC.