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5
Operating in EI Mode
To Autotune the MS for EI Mode
7000/7010 Series TQ GC/MS Operating Manual
117
To Autotune the MS for EI Mode
The MS can be tuned using the Agilent MassHunter GC/MS Acquisition
software.
Procedure
1
Set the system to the same conditions (column flow and MS analyzer
temperatures) that will be used for data acquisition. Since the GC
temperature varies throughout the run, select a temperature in the mid range.
2
In the
Instrument Control
panel, click the
MS
Tune
icon to display the
Triple
Quadrupole MS Tune
window.
3
The current tune file is displayed in the upper left corner of the
Triple
Quadrupole MS Tune
window. Verify that the correct tune file is loaded.
4
If necessary, load a new tune file by clicking on the
Files and Report
tab, then
click
Load
in the
Tune File
area. Select an etune.u based tune file for an EI
XTR source or an HES_atune.U based tune file for a HES, and click
OK
.
5
Click the
Autotune
tab, and select
EI high sensitivity autotune
for an EI HES or
XTR source. (See
6
Select the
Tune from default settings
check box if you are restarting the
system after a system vent, major servicing, or a power outage. If you clear
the
Tune from default settings
box, the autotune process starts using the
previous tune values.
7
Select
Save tune file when done
check box to save the new tune parameters
generated by the autotune. Do not select this item if you want to review the
autotune report before saving the newly generated tune parameters.
8
Select the
Print autotune report
check box to automatically print a tune
report.