AutomatedDynamic Headspace DHS
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Enhanced Detection Limits Carryover Eliminated Highest Productivity and Throughput Most Flexible Automated Solution Available

Automated Dynamic Headspace DHS The Dynamic Headspace technique combines the sensitivity and low detection limits of Purge and Trap with the ease of handling, high productivity and ruggedness of Headspace analysis. The Dynamic Headspace (DHS) option for the GERSTEL MPS autosampler, an industry standard, offers complete automation of the dynamic headspace technique. The DHS station is used to extract and concentrate VOCs from liquid or solid samples placed in standard headspace vials. The headspace above the sample is purged and analytes are concentrated on a user selectable adsorbent-filled...

DHS Benefits 1 Low detection limits • Exhaustive purge of sample headspace • Efficient trapping on selectable adsorbent tube • Direct and quantitative, split or splitless transfer from trap to GC/MS system • Lower detection limits than static headspace, SPME, and other widely used techniques 2 Reliable and reproducible • Inert, unique valve free sample path: No analyte discrimination, no cross contamination • A new trap can be selected for every sample to eliminate any risk of cross-contamination • Headspace purge technique, limits the risk of system contamination from sample foaming •...

GERSTEL DHSlarge GERSTEL DHSlarge Autosampler The DHS can be extended with the DHSlarge module to perform analysis of large or inhomogeneous bulk samples. For example, consumer products, packaging or flooring material can be placed directly in sample containers up to 1L in volume. Sample holders are available for flooring material, eliminating interfering emissions from the edges of the cut sample. Purge periods can be introduced to simulate air exchange conditions in environmental chambers. A series of analyses can be performed on a sample to determine emission behavior over time. DHS...