Innovative Technology For Trace Organic Analysis
TEL: +44 (0)1443 230 935
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World-leading system for automated tube analysis and re-collection

UNITY–ULTRA-xr Pro is a rapid, high-throughput, automated TD system for the unattended analysis of up to 199 sample tubes in a single sequence.

Who uses UNITY–ULTRA-xr Pro?

UNITY–ULTRA-xr Pro is ideal for laboratories needing to rapidly process large numbers of tube-based samples automatically.


Product benefits

  • Enhance throughput – Overlap mode and capacity for up to 199 tubes allow you to maximise productivity, e.g. unattended operation over several days.

  • Reduce running costs by avoiding the need for expensive and hazardous cryogen, and the associated risk of ice blockage of the flow path.

  • Peace of mind – With fully automated quantitative sample re-collection from all split flows, UNITY–ULTRA-xr Pro offers sequenced repeat analysis, simple method/data validation and overcomes the ‘one-shot’ limitation of other systems.

  • Expand your capabilities – Not only does the UNITY–ULTRA-xr Pro allow you to analyse the widest possible range of VOCs and SVOCs in a single run, but sample stacking increases sensitivity, and the unbeatable split range (splitless to 125,000:1) enables both high-concentration and trace-level samples to be analysed on the same instrument.

  • Secure and reliable – Tubes remain capped at all times, thereby making automation mechanically simple and avoiding sample contamination and/or analyte loss.

  • Simplify chain of custody and reduce errors with the on-board TubeTAG read/write functionality, which automatically updates tube and sample information during analysis.

  • Easy and intelligent operation – With built-in parameters for several standard methods, automated self-checking diagnostics, and usage/maintenance counters, you can quickly and easily get going and keep going.


  • Automated, cryogen-free, unattended operation for up to 199 sample tubes.

  • Automated quantitative sample re-collection enables repeat analysis of critical samples and easy method validation.

  • Robust design accommodates industry standard 3½″ tubes.

  • Stacking of multiple tube samples on the focusing trap increases sensitivity for samples restricted by breakthrough or time limitations.

  • An inert, optimised flow path allows quantitative recovery of C3 to C44, including reactive and thermally labile species... from percent to sub-ppt concentrations.

  • Rapid operation of the electrically-cooled focusing trap reduces costs and ensures fast sample throughput.
  • Method-compliance is aided by leak-testing, water management, and addition of internal standards.

  • Samples are easily tracked with barcoded tubes and RFID TubeTAGs.

  • Advanced software control – Markes Instrument Control (MIC) is the only software designed specifically for thermal desorption users. Get the most out of your instrument with components such as automated intelligent diagnostics, leak isolation, usage/maintenance counters, rapid method set-up and customisable limits.

Markes International Ltd
Gwaun Elai Medi-Science Campus
Tel: +44 (0)1443 230935
Markes International GmbH
Bieberer Straße 1-7
63065 Offenbach am Main
Tel: +49 (0)69 6681089-10
USA (West)
Markes International, Inc.
2355 Gold Meadow Way
Gold River, Sacramento
California 95670
Tel: +1 866-483-5684 (toll-free)
Markes Instruments (Shanghai) Co., Ltd
Unit 1002, Building 1
No.418, Guilin Road
Shanghai 200233
P.R. China
Tel: +86 21 5465 1216
Part of Schauenburg International

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