Investigating Sensitivity Issues - Thermo Scientific TSQ 8000 Evo Hardware Manual

Investigating Sensitivity Issues

Thermo Scientific
When you run Detector Check diagnostics on the TSQ 8000 Evo system, the Xcalibur
software checks for noise on the electrometer, multiplier, dynode and RF board. Sensitivity
issues are usually the result of an air leak, dirty components, or contamination. Sometimes
sensitivity issues can be caused by simple to fix problems such as the carrier gas tank running
out or a sample not being injected into the GC. Before troubleshooting for sensitivity issues,
look for the simple problems. If the problem is more complex, then check for air leaks or dirty
components. You can prevent these types of problems by properly cleaning and maintaining
your GC/MS system. It is normal to see a decrease in sensitivity in the first few injections on a
clean system.
Before troubleshooting for sensitivity issues, look for simple solutions, such as fixing a clogged
autosampler syringe or raising the level of your sample. You can always prevent sensitivity
issues from occurring by keeping your GC/MS system clean and free of contamination.
WARNING ELECTRICAL SHOCK HAZARD: When troubleshooting any issue that
-
requires removing a cover on the TSQ 8000 Evo mass spectrometer, you should power-off
and vent the instrument to avoid harming yourself.
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Troubleshooting
Investigating Sensitivity Issues
TSQ 8000 Evo Hardware Manual 97