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.
Enabling confident, high-throughput, automated TD analysis
TD100-xr™ is a high-throughput, automated thermal desorption system for the rapid and unattended processing of up to 100 sample sorbent tubes in a single sequence.
In contrast to other thermal desorption units, TD100-xr quantitatively re-collects samples for re-analysis or storage, enhancing sample security. TD100-xr also features an electrically cooled cold trap, dispensing with the expense and inconvenience of liquid cryogen.
Uninterrupted monitoring of trace chemical vapours
TT24-7™ is an advanced thermal desorption system for continuous near-real-time (NRT) monitoring of VOCs and SVOCs in air or gas.
TT24-7 ensures 100% data capture by using a twin-trapping design that can accommodate a wide range of sampling flow rates. As with all Markes’ thermal desorption instruments, TT24-7 operates completely cryogen-free, enabling it to be used in both static and mobile laboratory facilities.
Cryogen-free automation for high-performance canister & bag analysis
CIA Advantage-xr™ is an advanced system for the automated analysis of VOCs in canister air and gas. It has multiple-canister capacity and operates cryogen-free.
Robust, cryogen-free, on-line air monitoring system
The Air Server-xr™ is a slimline module that allows a controlled flow of air/gas to be introduced directly into the focusing trap of the UNITY-xr thermal desorption unit, allowing automated sampling from on-line air or gas streams.
An innovative approach for monitoring polar species in humid environments
The Kori-xr option for Markes International’s ‘xr’ series of thermal desorbers addresses the problem of analyte loss when removing water from humid air streams, allowing high‑sensitivity analysis of polar species, oxygenates and monoterpenes in humid environments, sampled on-line or using canisters.
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.
Fast sampling of emissions from products and materials
The Micro-Chamber/Thermal Extractor™ (µ-CTE™) is a versatile and compact unit with up to six small cylindrical chambers that enables the sampling of chemicals released from products or materials. Released volatile and semi-volatile organic compounds (VOCs and SVOCs) are collected onto sorbent tubes for analysis by TD–GC–MS.
Conditioning and dry-purging units for multiple sorbent tubes
The TC-20™ and TC-20 TAG™ are compact, stand-alone devices for the simultaneous conditioning or dry-purging of up to 20 thermal desorption sorbent tubes.
Multi-tube sequential sampler
The MTS-32™ is a compact, portable sampler for the unattended sequential sampling of air onto a series of sorbent tubes. Constant-flow pump technology ensures that the same volume of air is collected onto each tube.