UNITY xr a6


The most versatile and powerful thermal desorption unit

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The most versatile and powerful thermal desorption unit

UNITY-xr™ is an industry-leading analytical​ TD instrument for the simultaneous analysis of VOCs, SVOCs and thermally labile compounds collected onto sorbent tubes.
In contrast to other thermal desorption units, UNITY-xr quantitatively re-collects samples for re-analysis or storage, enhancing sample security. UNITY-xr also features an electrically cooled cold trap, dispensing with the expense and inconvenience of liquid cryogen. 

Product benefits

  • Peace of mind – with quantitative sample re-collection for repeat analysis, UNITY-xr offers simple method/data validation and overcomes the ‘one-shot’ limitation of other systems.
  • Expand your capabilities – Analyse the widest possible range of VOCs and SVOCs in a single run, including reactive and thermally labile species.
  • Reduce running costs by avoiding the need for cryogen.
  • Enhance productivity with the world’s most versatile thermal desorber – UNITY-xr offers unmatched analytical performance for the widest range of TD applications.
  • Future-proof your lab – additional modules allow automation of multiple tubes, canisters and on-line samples – making UNITY-xr the perfect platform for expansion as the needs of your lab grow.
  • Be confident – you’re using a desorber that complies with key standards such as US EPA Method TO-17.


  • Quantitative sample re-collection of all the split flows enables repeat analysis of critical samples and easy method validation.
  • An inert, optimised flow path allows quantitative recovery of C2 to C44, including reactive and thermally labile species... from percent to sub-ppt concentrations.
  • As well analysing 3½″ standard TD tubes, the UNITY-xr facilitates analysis of on-line, canister and bag samples through the modular addition of versatile accessories.
  • Rapid operation of the electrically-cooled focusing trap reduces costs and ensures fast sample throughput.
  • Method-compliance is aided by tube- and leak-testing, water management, and addition of internal standards.
  • Samples are easily tracked with barcoded tubes and RFID TubeTAGs.
  • Compatible with all major makes of GC and GC–MS