Agilent Technologies Agilent 7890 Series Maintenance Manual page 49

C A U T I O N
Maintaining Your GC
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
Place a septum, capillary column nut, and ferrule on the
5
column.
Ferrule
Column nut
Septum
Score the column using a glass scribing tool. The score
6
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.
Wipe the column walls with a tissue dampened with
8
isopropanol to remove fingerprints and dust.
Maintaining the Split/Splitless Inlet
Bad
Good
5
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