36 Troubleshooting
3 Chromatographic Symptoms
Sample Decomposition in Inlet/Missing Peaks
• Lower the inlet temperature.
• Check for air or water in the carrier gas; verify gas purity
and functionality of traps.
• Verify that the liner is appropriate for the sample being
run.
• Perform complete inlet maintenance: Replace all
consumable parts and bake out the inlet.
• Install a deactivated liner (SS, PP, MMI and PTV inlets).
• Check for leaks at the septum, liner, and column fittings.
(See “Checking for Leaks”.)
• Install an Agilent Direct Connect liner.
• Use a pulsed pressure method for quicker sample transfer
to column.
• Bake out the inlet. See the following:
• To Bakeout Contaminants from the Split/Splitless Inlet
• To Bakeout Contaminants from the Multimode Inlet
• To Bakeout Contaminants from the Purged Packed Inlet
• To Bakeout Contaminants from the COC Inlet
• To Bakeout Contaminants from the PTV Inlet
• To Bakeout Contaminants from the VI Inlet
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