8 Maintaining the MMI
To Install a Capillary Column with the Multimode Inlet
Maintaining Your GC 127
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 10 to 12 mm above the end of the ferrule. Slide the
septum up the column to hold the column nut at this position.
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