Maintaining the Split/Splitless Inlet 4
Maintaining Your GC 41
5 Place a septum, capillary column nut, and ferrule on the
column.
6 Score the column using a glass scribing tool. The score must
be square to ensure a clean break.
7 Break off the column end by supporting it against the column
cutter opposite the scribe. Inspect the end with a magnifying
loupe to make certain there are no burrs or jagged edges.
8 Wipe the column walls with a tissue dampened with
isopropanol to remove fingerprints and dust.
9 Position the column so it extends 4 to 6 mm above the end of
the ferrule. Slide the septum up the column to hold the
column nut at this position.
Ferrule
Column nut
Septum
Good
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