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Application Note 006

Troubleshooting analytical thermal desorption applications

Application Note 006

This application note describes some of the most commonly encountered concerns and how best to address them.

The following issues are covered:

  • Poor peak shape
  • Contamination – chromatogram artefacts
  • Component carryover
  • Poor peak precision
  • Poor analyte recovery
  • Cold trap cooling problems
  • High air/water background
  • Air/water step seen when scanning to low masses with an MS detector
  • Frequent leak test failures

Advice given relates specifically to Markes’ UNITY™-based systems and the TD-100™.

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