6 Maintaining the Purged Packed Inlet
To Install a Capillary Column with the Purged Packed Inlet
Maintaining Your GC 73
18 After the column is installed at both inlet and detector, establish a flow of carrier gas and
purge as recommended by the column manufacturer.
19 Restore the analytical method.
• For FPD+, immediately turn off the flame.
• For NPD, immediately turn off the bead.
20 After the GC becomes ready, wait 10 minutes then ignite the detector flame or adjust
offset on the NPD bead.
Be careful! The oven, inlet, and/or detector may be hot enough to cause burns. If the oven,
inlet, or detector is hot, wear heat-resistant gloves to protect your hands.
21 Allow the oven, inlet, and detector to equilibrate at operating temperature, then retighten
the fittings.
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