Columns and Traps Part 1. Capillary columns
Procedure: Installing capillary columns in the FPD
120
Mark the column at a point even with the bottom of the nut. Typewriter
correction fluid works well.
6. Insert the column in the detector. Slide the nut and ferrule up the column to
the detector base. Finger tighten the column nut until it starts to grab the
column.
7. Adjust the column position so that the correction fluid mark on the column
is even with the bottom of the column nut. Proceed to step 8.
8. Tighten the column nut finger tight, then withdraw the column about 1 mm.
Use a wrench to tighten the nut an additional 1/4 turn.
9. After the column is installed at both inlet and detector, establish a flow of
carrier gas through the inlet. Heat the oven, inlet, and detector to operating
temperatures. Allow them to cool and then retighten the fittings.
Mark column here
153 mm
Correction
fluid mark
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