To Bakeout Contaminants From The Coc Inlet - Agilent Technologies Agilent 7890 Series Maintenance Manual

To Bakeout Contaminants from the COC Inlet

Maintaining Your GC
1 Set the column flow to the normal operating value, or set
the capillary column gas velocity to 30 cm/s.
Purge the column with carrier flow for at least
2
10 minutes before heating the oven.
Set the inlet mode to Oven Track.
3
4 If the column is attached to the detector, set the detector
25 °C above normal operating temperature.
If the column is not attached to the detector, cap the
detector fitting.
5 Set the column oven 25 °C above the GC method final
oven temperature to bake contaminants out of the inlet.
Do not exceed the column manufacturer's maximum
temperature limit.
Bakeout for 30 minutes or until the detector baseline is
6
free of contamination peaks.
Maintaining the COC Inlet
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