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Multi-tube thermal desorber with advanced upgrade options

UNITY–ULTRA-xr™ is an automated thermal desorption system for the rapid and unattended processing of up to 100 sorbent tubes in a single sequence. Additional options include autosamplers for canister, bag or on-line analysis. The UNITY–ULTRA-xr is the ideal platform for high-throughput laboratories requiring the flexibility to expand their capabilities to extended analyte ranges and varied sample types while maximising sample throughput.

UNITY–ULTRA-xr is also available with Markes' award winning Multi-Gas functionality, independently certified for operation with a choice of 3 carrier gases: helium, nitrogen and hydrogen. Hydrogen carrier gas offers fast, cost-effective analyses and protection against future helium shortages.

Market-leading advantages of UNITY–ULTRA-xr

  • Eliminate helium dependency – Use of hydrogen, nitrogen or helium as a carrier gas for your automated sorbent tube analysis with Markes’ Multi-Gas UNITY–ULTRA-xr.
  • Sample Security – With quantitative sample re-collection for repeat analysis, UNITY–ULTRA-xr offers simple method/data validation and overcomes the ‘one-shot’ limitation of historical systems. Additionally, tubes remain capped at all times, avoiding sample contamination and/or analyte loss.
  • Cost saving – The electrically-cooled focusing trap eliminates the expense and hassle of liquid cryogen and prevents risk of ice blockages thus optimising uptime. Choosing to operate with hydrogen carrier gas with a Multi-Gas thermal desorber will also eliminate dependency on helium and its rising cost.
  • Versatility – Additional modules allow automated sequencing of canisters, bags and on-line samples – making UNITY–ULTRA-xr the perfect platform for expansion as the needs of your lab grow.
  • Time saving – Capacity for up to 100 tubes and the ability to use overlap mode allow you to maximise productivity (for example, by running samples unattended all weekend).
  • Broadest available tube analyte and concentration range – UNITY–ULTRA-xr is compatible with analysis of VOCs from C3to C44, including reactive and thermally labile species. The unbeatable split versatility (true-splitless to 125,000:1) also enables both high-concentration and trace-level samples to be analysed.
  • Precision – Automated addition of an internal standard to the focusing trap or to a tube, during analysis enhances the quality of your data.
  • High data quality – Automatic leak tests carried out before analysis of each sample ensure confidence in your data quality and full compliance with key regulated methods.
  • Reliability – Dry-purge or pre-purge automatically remove water and air from the sample before analysis, avoiding the risk of interference in the gas chromatograph, and extending the lifetimes of your column and detector.
  • Simplified chain of custody – The on-board TubeTAG read/write functionality automatically updates tube and sample information during analysis.
  • Compliance with standard methods – Stringent leak testing, re-collection and a range of advanced water management options ensure full compliance with key standard methods from numerous regulatory bodies, including US EPA, Chinese EPA, CEN, ISO, ASTM, HSE, JSA and NIOSH.
  • Easy laboratory integration – UNITY–ULTRA-xr is compatible with GC and GC–MS from all major manufacturers, minimising the upfront investment required to investigate new TD markets for your lab.
  • Easy and intelligent operation – Built-in standard-method parameters, automated self-checking diagnostics and usage/maintenance counters maximise instrument uptime.

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Download product brochure and specification sheet