Innovative Technology For Trace Organic Analysis
TEL: +44 (0)1443 230 935
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100-tube autosampler for unattended high-throughput thermal desorption analysis

ULTRA-xr™ is a high-throughput autosampler that adds to the UNITY-xr thermal desorption unit, for the rapid and unattended analysis of VOCs and SVOCs from up to 100 sample sorbent tubes in a single sequence.

Who uses the ULTRA-xr?

ULTRA-xr is ideal for analytical laboratories wishing to upgrade their existing UNITY-xr system to process multiple sample tubes efficiently, or upgrade their ability to re-collect split samples.


Product benefits

  • ULTRA thermal desorption autosamplerEnhance throughput – with capacity for up to 100 tubes and all the performance advantages of UNITY-xr, you can generate reliable data all weekend.
  • Peace of mind – ​by automating sample re-collection for repeat analysis, ULTRA-xr offers simple method/data validation and overcomes the ‘one-shot’ limitation of other systems.
  • Future-proof your lab – ULTRA–UNITY-xr systems are compatible with on-line and canister automation – allowing you to expand as the needs of your lab grow.
  • Save time and money – free-up your laboratory staff with robust automation for your world-leading UNITY-xr thermal desorber.



  • Automated, cryogen-free, unattended operation for up to 100 sample tubes.

  • Confidence in results through quantitative sample re-collection of split flows.

  • Robust design accommodates standard 3½″ sample tubes.

  • Compatibility with a variety of analytes over a wide concentration range makes the UNITY–ULTRA-xr ideal for most TD–GC–MS applications.

  • Method compliance aided by leak-testing, water management and addition of internal standard.

  • Enhanced traceability of samples using barcodes and RFID TubeTAGs.

  • High-precision parts result in increased robustness.

Markes International Ltd
Gwaun Elai Medi-Science Campus
CF72 8XL, UK
Tel: +44 (0)1443 230935
Markes International GmbH
Schleussnerstrasse 42
D-63263 Neu-Isenburg
Tel: +49 (0)6102 8825569
USA (West)
Markes International, Inc
2355 Gold Meadow Way
Gold River
California 95670
Tel: 866-483-5684 (toll-free)
Part of Schauenburg International

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