Sample Decomposition In Inlet/Missing Peaks - Agilent Technologies 7890 Series Troubleshooting Manual
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Also See for 7890 Series:
- Advanced operation manual (246 pages) ,
- Quick reference manual (4 pages) ,
- Installation checklist (8 pages)
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Sample Decomposition in Inlet/Missing Peaks
Agilent 7890 Series Troubleshooting
• 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 (if liner is used).
• 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
• Clean the inlet. See the following:
•
To Clean the Split/Splitless Inlet
•
To Clean the Multimode Inlet
•
To Clean the Purged Packed Inlet
•
To Clean the COC Inlet
•
To Clean the Septumless Head on the PTV Inlet
•
To Clean the Septum Seat in the Septum Head Assembly
of the PTV Inlet
•
To Clean the VI
Chromatographic Symptoms
3
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