5
Changing Ionization Modes
Removing the Ion Volume
Thermo Scientific
TSQ Quantum XLS and TSQ Quantum GC User Guide
79
e.
Loosen the inlet valve knob by turning it counterclockwise to release the seal.
f.
Continue withdrawing the I/R tool completely from the inlet valve by sliding the I/R
tool through the guide ball track in the guide bar.
9. Remove the ion volume from the I/R tool. See
.
a. Wearing clean gloves, press the ion volume forward into the tip of the I/R tool and
rotate it to disconnect the bayonet pins from the pin guides.
b. Pull the ion volume out of the I/R tool.
Figure 44.
Ion volume, ion volume holder, and I/R tool
10. To clean the ion volume, use the instructions in
“Cleaning Stainless Steel Parts”
. If you are cleaning a CI ion volume, be sure to clean out the small electron
entrance hole. Aluminum oxide can get trapped in this hole, which can adversely affect
sensitivity. Use a dental pick or old syringe needle to clean the hole.
CAUTION
Do not withdraw the I/R tool beyond the point where the guide ball
reaches the first stop in the guide bar. Close the inlet valve first. Otherwise, the
system vents to the atmosphere.
CAUTION
Because the ion volume might be too hot to touch, let it cool to room
temperature before handling it.
Bayonet pin
Bayonet
lock
Arrow
Arrow
Ion volume
Ion volume holder
Spring washer
Bayonet pin
guide
I/R tool