4 Maintaining Capillary Columns
To Condition a Capillary Column
Maintaining Your GC 35
• “To Install a Capillary Column with the Cool On-Column Inlet”
4 Cap any open column fittings, for example, the detector column fitting.
5 Turn off all detectors.
6 Set a minimum velocity of 30 cm/s, or as recommended by the column manufacturer.
7 Set the oven to 120 °C.
8 Let gas flow through the column for 15 to 30 minutes to remove air.
9 Program the oven from 120 °C to the maximum temperature limit for the column. Increase
the temperature at a rate of 10 to 15 °C/min. Hold at the maximum temperature for
30 minutes.
10 Manually set the oven temperature to < 40 °C, and wait for the oven, column and all other
parts you might come into contact with inside the oven to cool before continuing.
Be careful! The oven and/or detector may be hot enough to cause burns. If the detector is
hot, wear 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.
11 If not already installed, attach the column to the detector. For details, select your specific
detector.
Perform the installation procedure manually. Do not use the automated installation wizard.
• To Install a Capillary Column in the FID
• To Install a Capillary Column in the NPD
• To Install a Capillary Column in the TCD
• To Install a Capillary Column in the ECD
• To Install a Capillary Column to the FPD+
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