The aim of this study was to explore the feasibility of chemical sensor technology for the classification of coffees from different origins. As opposed to the SDEGC-MS approach, chemical sensor technology or mass spectrometry-based electronic nose can be considered as a fast analytical technique.

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GERSTEL Headspace ChemSensor System

GERSTEL Headspace ChemSensor System

Unlike traditional electronic noses that are based on solid-state sensors, the GERSTEL ChemSensor System use proven quadrupole mass-spectrometer technology.

Benefits:
  • The GERSTEL Headspace ChemSensor System is unaffected by moisture in the sample, ambient humidity, or ambient temperature fluctuations. It is also immune to sensor poisoning.
  • Quadrupole technology enables customized screening and classification for multiple applications on the same system.
  • The GERSTEL Headspace ChemSensor System can ignore ions associated with dominant sample components – such as alcohol in wines or acetic acid in salad dressings – and model only the critical factors that differentiate samples.
  • Ions in a suspect sample that are not present in a good sample can be monitored in subsequent analyses using GC/MS. This can reduce troubleshooting time substantially and puts you steps ahead of e-noses that do not have this correlation capability.
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