Agilent Technologies 5975 Series

2 Installing 7890/7820/6890/6850 GC Columns
48 5975/5977 Series MSD Operating Manual
Calculation for average linear velocity
Average linear velocity (cm/s) =
where:
L = Length of the column in meters
t = Retention time in seconds
Calculation for volumetric flow rate
Volumetric flow rate (mL/min) =
where:
D = Internal column diameter in millimeters
L = Column length in meters
t = Retention time in minutes
100 L
t
---------------
0.785 D
2
L
t
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