74 5975 Series MSD Operation Manual for MassHunter
3 Operating in Electron Impact (EI) Mode
To Calibrate Column Flow Linear Velocity
Capillary columns must be calibrated prior to use with the MS.
Procedure
1 Set Data Acquisition for splitless manual injection and set up a real time
plot to monitor m/z 28.
2 Press [Prep Run] on the GC keypad.
3 Inject 1 µL of air into the GC inlet and press [Start Run]
4 Wait until a peak elutes at m/z 28. Note the retention time.
5 In the Instrument Control view, select GC Parameters from the Instrument
menu.
6 Select the Configuration tab and then select the Columns tab.
7 Select your installed column from the table.
8 Click the Calibrate button to display the Calibrate Column dialog.
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