5 Operating in EI Modeï€
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 Figure 38 on page 118.)
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.
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