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DHS 3.5 - Dynamic Headspace 3.5

The DHS station extracts and concentrates VOCs from liquid or solid samples placed in standard headspace vials. The DHS station provides thermostating at temperatures from 10 to 200 °C as well as agitation and purging of the sample headspace with inert gas. A replaceable adsorbent or sorbent filled tube is used for analyte concentration followed by thermal desorption. The DHS 3.5+ handles standard 3.5” tubes, as prescribed in several standard methods, in addition to GERSTEL plus tubes, which hold up to 20 % more sorbent for enhanced break-through volume, improved recovery as well as improved limits of detection.