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2
Installing 7890/7820/6890/6850 GC Columns
46
5975/5977 Series MSD Operating Manual
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 OpenLAB, select Method layouts, and click
Agilent GC > Configuration
>Columns
.
6
Select your installed column from the table.
7
Click
Calibrate
to display the
Calibrate Column
dialog.
8
Click
Calc Length
in the
If unretained peak holdup time is known
section to
display the
Calculate Column Length
dialog. (See
.)