Table of Contents
Advertisement
3
CI Troubleshooting
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 Agilent 7250 Accurate-Mass Q-TOF
GC/MS System Operating Manual for more information.
The CI ion source is dirty.
Clean the ion source. See the Agilent 7250 Accurate-Mass Q-TOF GC/MS System
Operating Manual for more information.
Too much air or water in the system
See
source.
The CI ion source is dirty
Clean the ion source. See the Agilent 7250 Accurate-Mass Quadrupole
Time-of-Flight GC/MS System Operating Manual for more information.
Air leak
Run an air and water check. See the software online help for additional
information.
7250 Accurate-Mass Q-TOF Troubleshooting and Maintenance Manual
"Air Leaks"
on page 52. After eliminating these problems, clean the ion
65
Advertisement
Table of Contents
Troubleshooting
