Thermal Desorption

A fully equipped thermal desorption GC/MS system


TD LabAccurate analysis of volatile organic compounds (VOC) in indoor air samples or emanating from distinct sources in the environment is extremely challenging. This is primarily due to the fact that a large variety of compounds exist in the gas phase with concentrations ranging from ppt to percentage level. Usually, trace levels of volatile organic compounds are determined by passing air over a sampling tube, which contains a bed of a suitable packing material. Thermal desorption is to be preferred to release trapped components, since it can be carried out fully automated an on-line with the analytical instrument. Obviously, this results in a substantial sensitivity gain compared to liquid desorption where only a small percentage of the extract is injected. In addition, thermal desorption does not lack the abilty to detect compounds that elute under the solvent peak and does not require the use of toxic solvents such as carbon disulfide. For both new and advanced thermal desorption users we have installed a fully functional Markes Unity2 thermal desorption system with air server module to one of our Thermo GC/MS systems. Additional features include a microchamber, a FLEC cell and a permeation unit for calibration purposes.





Core facilities:
- Thermo Trace 1300 GC with i-connect injectors
- Thermo ISQ single quadrupole MS
- Markes Unity2 system with airserver module
- Markes microchamber (µ-CTE)
- FLEC cell for surface sampling applications
- Permeation unit for calibration



Recent projects:
- Evaluation of FLEC sampling for the identification of malodor
- Sampling methodologies for quantitative characterization recycled PET pellets
- Application of FLEC sampling to perfume decay monitoring


For Belgium, Luxemburg and France:
Av. J. E. Lenoir 2, 1348 Louvain-la-Neuve
Tel: +32(0)10/45.00.25 - Fax: +32(0)10/45.30.80

For The Netherlands:
Tinstraat 16, 4823 AA Breda
Tel: +31(0)765/411.800 - Fax: +31(0)842/206.757


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