Columns and Traps Part 3. Packed glass columns
Procedure: Installing glass packed columns
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2. Insert the column into the inlet until it bottoms. Insert the column into the
detector fitting but do not force it. It may be necessary to start the long end of the
column in the inlet at an angle to clear the oven floor.
3. Withdraw the column 1 to 2 mm from both the inlet and detector. Tighten
both column nuts finger tight.
4. Tighten both column nuts 1/4 turn with a wrench. If you use graphitized
Vespel ferrules, proceed to step 5. If you use O-rings, proceed to step 6.
Caution Overtightening the column nut or forcing it to bottom in both the inlet and detec-
tor may shatter the column.
5. Set flow through the column and raise the inlet, detector, and oven to oper-
ating temperature. Then set the oven to ambient and allow it to cool.
6. Use the wrench to tighten the nut an additional 1/2 turn. Tighten further, as
necessary, to prevent leakage.
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