Agilent Technologies 7890A Troubleshooting

80 Agilent 7890 Series Troubleshooting
3 Chromatographic Symptoms
NPD Solvent Quenching
If the baseline does not recover after a solvent peak, try the
following:
• Turn hydrogen off/on around the solvent peak.
• Use nitrogen as the makeup gas.
• Set the total column flow and makeup gas to less than
10 mL/min.
• Increase the air flow by 10 mL/min.
• Increase the detector temperature to 325 °C.
• Implement an Agilent Dean’s switch solvent vent solution.

Agilent Technologies 7890A Specifications

General

Brand	Agilent Technologies
Model	7890A
Category	Laboratory Equipment
Language	English