Agilent Technologies Agilent 7890 Series

42 Maintaining Your GC
4 Maintaining Capillary Columns
To Disconnect Fused Silica Tubing From a SilTite Fitting
Loosen and remove the internal nut. If tubing and ferrule do
not come free, insert a pointed object (pen, paper clip) into
the ferrule release hole and press firmly. You will hear a
click as the ferrule releases.
The SilTite ferrule seal should remain leak- free for many
disconnections and reconnections.