4
Maintaining Capillary Columns
To Remove the Ferrule From a CFT Fitting
To Remove the Ferrule From a CFT Fitting
Loosen and remove the internal nut. If the ferrule does not release from the fitting, do not try to
pull the column free. Insert a pointed object (such as a thumb pin or a paper clip) into the
ferrule release hole, as
releases.
Figure 19.
Maintaining Your GC
shown
Ferrule release holes
Release the ferrule (Ultimate Union fitting shown)
in
Figure
19, and press firmly. You will hear a click as the ferrule
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