Thermo Scientific
TSQ Quantum XLS and TSQ Quantum GC User Guide
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5
Changing Ionization Modes
You can operate the TSQ Quantum XLS and TSQ Quantum GC mass spectrometers in
either EI or CI ionization mode. Changing ionization modes requires changing ion volumes.
It is not necessary to shut down the mass spectrometer to change ion volumes.
The following sections describe how to change the ionization mode.
Removing the Ion Volume
Y
To remove the ion volume
1. Install the guide bar.
a. With the guide ball track facing left, insert the guide bar into the entry housing.
See
b. Push the guide bar in as far as it will go; then rotate it 90° clockwise to lock the guide
bar in the entry housing.
Contents
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Tools Needed
• Gloves, clean, lint- and powder-free
• Insert/removal (I/R) tool and guide bar
Frequency
When you change ionization modes or as needed to clean the ion volume