8 Maintaining the MMI
To Install a Capillary Column with the Multimode Inlet
126 Maintaining Your GC
To Install a Capillary Column with the Multimode
Inlet
Do not use hydrogen as the carrier for conditioning! It could vent into the oven and present an
explosion hazard.
1 Gather the following, see “Consumables and Parts for the Multimode Inlet” on page 122:
• Column
• Ferrule(s)
• Column nut
• Septum
• Column cutter
• Isopropanol
• Lab tissue
• Metric ruler
• Two 1/4-inch open-end wrenches
• Lint-free gloves
2 Place GC in maintenance mode: Maintenance > Instrument > Perform Maintenance >
Maintenance Mode > Start Maintenance. Wait for the GC to become ready.
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.
3 Verify that the correct glass liner is installed. See “Consumables and Parts for the
Multimode Inlet” on page 122.
4 Place the column on the hanger with the ends pointing up and the label to the front.
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.
5 Place a septum, capillary column nut, and ferrule on the column.
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