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3
Operating in Electron Ionization (EI) Mode
To Calibrate Column Flow Linear Velocity
Capillary columns must be calibrated prior to use with the MS.
Procedure
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Set Data Acquisition for splitless manual injection and set up a real time
plot to monitor m/z 28.
Press [Prep Run] on the GC keypad.
Inject 1 µL of air into the GC inlet and press [Start Run]
Wait until a peak elutes at m/z 28. Note the retention time.
In OpenLAB, select Method layouts, and click Agilent GC > Configuration >
Columns.
Select your installed column from the table.
Click the Calibrate button to display the Calibrate Column dialog.
Click the Calc Length button in the If unretained peak holdup time is known
section to display the Calculate Column Length dialog.
5975/5977 Series MSD Operation Manual
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