The Ci Ion Source Is Dirty; Air Leak - Agilent Technologies 7200 Troubleshooting And Maintenance Manual

The CI ion source is dirty.

Clean the ion source. See the
System Operation
Cannot complete Autotune
Wrong or corrupted tune file
Check the tune parameters.
The m/z 28/27 ion ratio (for methane) is incorrect. The correct ratio should be
between 1.5 and 5.0.
If the ion ratio is incorrect, adjust it. See the
Q-TOF GC/MS System Operation
The CI ion source is dirty.
Clean the ion source. See the
System Operation
Too much air or water in the system
See
source.
The CI ion source is dirty
Clean the ion source. See the
System Operation

Air leak

Run Methane Pretune (in PCI). A visible peak at m/z 32 indicates air in the
system. Check for and correct any leaks. See
eliminating all air leaks, clean the ion source.
Troubleshooting and Maintenance Manual
Manual.
Manual.
"Air Leaks" on page 52. After eliminating these problems, clean the ion
Manual.
Agilent 7200 Accurate-Mass Q-TOF GC/MS
Agilent 7200 Accurate-Mass
Manual.
Agilent 7200 Accurate-Mass Q-TOF GC/MS
Agilent 7200 Accurate-Mass Q-TOF GC/MS
"Air Leaks"
CI Troubleshooting
on page 52. After
65
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