Headspace Injection
Headspace Injection

Headspace Injection with the PAL System Delivers Many Strong Benefits to the Laboratory

The best benefit is the unique tool-based solution. No additional instrument is needed, no additional bench covered, and no re-routing of gas lines from the GC is necessary. For static and for dynamic headspace analysis only a dedicated tool is inserted into the PAL System and can be used immediately.

headspace injection
  • Analysis methods for volatiles are the direct sampling of an aliquot of the sample headspace (static headspace analysis), or a concentration of the analytes before measurement (dynamic headspace analysis) if the compounds are of low concentration or less volatile (semi volatile organic carbons, SVOCs). 

  • While the static headspace analysis takes an aliquot of gas after a sample/headspace equilibrium is reached, the dynamic method collects as much as possible of the analytes of interest before injection. Both methods required in the past technically different, complex, and separate instrumentation with space-consuming and costly equipment. In common for both methods is the way of analysis by GC or GC/MS. Usually, one dedicated headspace or purge & trap unit was required for each of the static and dynamic headspace analyses.

sensitive diagramm
  • On the PAL System, both of the headspace analysis modes offer the easiest approach from sample to results for a wide variety of volatile compounds. No wet chemical sample preparation or extraction or clean-up is required. Test portions of the sample go directly into sample vials for automated analysis of large sample series on the PAL System with unmatched sample capacity.

  • The workflows for static (HS-GC) and dynamic headspace analysis (ITEX DHS-GC) are integrated in the GC and GC/MS chromatography data systems (CDS). Any injector type and dimension can be addressed by the PAL System, also multiple injectors on one GC. For the analysis with columns of different polarity two or more injectors of a GC can be used.

  • For high throughput applictions one longer PAL System serves the injectors on several GC systems saving cost for multiple autosampler.

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