8 Maintaining the COC Inlet
To Install a Capillary Column with the Cool On-Column Inlet
124 Maintaining Your GC
To Install a Capillary Column with the Cool
On-Column Inlet
1 Gather the following:
• Column nut and ferrule, see “Consumables and Parts for the Cool On-Column Inlet” on
page 120.
• Column cutter
• 1/4-inch and 5/16-inch wrenches
• Lint-free gloves
2 Launch the GC maintenance wizard: Maintenance > Column > Perform Maintenance >
Install Column > Start Maintenance. Wait for the GC to become ready.
The wizard will guide you through the maintenance steps described below.
Be careful! The oven and/or inlet may be hot enough to cause burns. If either is hot, wear
heat-resistant gloves to protect your hands.
Wear safety glasses to protect your eyes from flying particles while handling, cutting, or
installing glass or fused silica capillary columns. Use care in handling these columns to
prevent puncture wounds.
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.
3 Before installing the column, be sure the correct insert is installed for the needle and
column. See “To Install an Insert on the COC Inlet” on page 130.
4 Place a capillary column nut and ferrule on the column.
5 Score the column using a glass scribing tool. The score must be square to ensure a clean
break.
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