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Products  •  Gas Chromatography  •  GC/MS Sample Prep & Introduction  •  Markes UNITY-xr Thermal Desorber

Versatility and performance

UNITY-xr™ is a versatile analytical thermal desorption instrument for GC and GC/MS. It offers analysis of trace-level volatile and semi-volatile organic compounds (VOCs and SVOCs) in air and materials. 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.

Features

  • 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

Webinars

vehicle interior emissions

Webinar: Understanding Vehicle Interior Emissions Regulations

Wednesday, December 18th at 11:00 am PST
Get an introduction to the regulations limiting the quantities of VOCs and SVOCs allowed in vehicle cabin air. We’ll describe the evolution of harmonized, globally-applicable standard methods for sampling and measuring them.

Other Resources

Voc hydrocarbons monitoring app note

On-Line Monitoring of VOC Hydrocarbons in Ambient Air

This application note describes validation of a thermal desorption system for on-line monitoring of a complex mix of VOC hydrocarbons. This includes volatile and very volatile compounds (‘ozone precursors’) in ambient air.

viaq analysis

Application Guide: Thermal Desorption in the Vehicle-Manufacturing Industry

Application guide describe the role of thermal desorption (TD) in whole air testing of car cabins, direct desorption of small samples, and other applications in vehicle manufacturing.

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Markes UNITY-xr Thermal Desorber

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Markes TD100 xr

Markes TD100-xr Thermal Desorber

Automated thermal desorption system for processing of up to 100 sample sorbent tubes in a single sequence.

Markes CIA Advantage

Markes CIA Advantage Automated Canister Analyzer

Cryogen-free, advanced system for the automated analysis of VOCs in canister air and gas samples.

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