Packaging materials for foodstuffs or consumer usage must not alter the fl avor or odor of the substance being packaged. Examples of packaging materials include the paper used to wrap cigarettes, the paper cartons used in orange juice or milk and the Polyethylene (PE) often used for caps to seal soft drink bottles. Sometimes, due to differences in the raw materials or changes in the production processes, chemical inconsistencies can be found in these packaging materials.

For example, a common issue with packaging materials is encountered when they emit off-odors. Traditionally acceptance of batches is often based on sensory panels. However this is very subjective and time consuming. Ideally an objective and fast screening system should be located directly at the production floor. This is a typical application for chemical sensors.

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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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