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2
Installing GC Columns
To Condition a Capillary Column
Materials needed
• Carrier gas, (99.9995% pure or better)
• Wrench, open-end, 1/4-inch and 5/16-inch (8710-0510)
Do not condition your capillary column with hydrogen. Hydrogen accumulation in
WARNING
the GC oven can result in an explosion. If you plan to use hydrogen as your carrier
gas, first condition the column with ultrapure (99.999% or better) inert gas such as
helium, nitrogen, or argon.
The GC operates under high temperatures. To avoid burns, do not touch any GC parts
WARNING
unless you are certain they are cool.
Procedure
1 Install the column in the GC inlet. (See
2 Set a minimum velocity of 30 cm/s, or as recommended by the column
3 Program the oven from room temperature to the maximum temperature
4 Increase the temperature at a rate of 10 to 15 °C/min.
5 Hold at the maximum temperature for 30 minutes.
Never exceed the maximum column temperature, either in the GC/MS interface, the
CA UT IO N
GC oven, or the inlet.
6 Set the GC oven temperature to 30 °C and wait for the GC to become ready.
7 Attach the column to the GC interface. (See
36
Split/Splitless Inlet"
manufacturer. Allow the carrier gas to flow through the column at room
temperature for 15 to 30 minutes to remove air.
limit for the column.
in the GC/MS Interface Using the Self-Tightening Column Nut"
"To Install a Capillary Column in a
on page 33.)
"To Install a Capillary Column
5977B Series MSD Operation Manual
on page 37.)
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