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Member since: 2015
Organization: Cardiff University
Application Area: For recording of VOC profiles from plant and animal samples
"The system makes collection and analysis of VOC really easy. The ability to re-collect samples, adjust desorption conditions, split rates and internal standard addition allows customisation of system to a wide range of analytes and to sample with high dynamic range. "
Member since: 2013
Organization: Materials Analytical Services, (MAS) LLC
Application Area:We are primarily using the Markes TD-100 for thermal desorption of TENAX tubes
"MAS purchased two of these units in the past year to replace earlier model thermal desorption units from another manufacturer. The replacements and a change to Markes was prompted by a desire to minimize instrument down time, move to a trap design, eliminate de-capping issues and increase our overall analytical sensitivity. Our use and reliance on these new instruments over the past 6 to 12 months has proven to be a sound investment. Specifically, the units are easier to operate and diagnose issues as the pressure is handled by the GC. Overall we have experienced more accuracy, significantly better precision and far less maintenance issues. We have found that the unit has particularly been beneficial in sensitive odor projects."
With capacity for up to 100 sorbent tubes, TD-100 is particularly well-suited to the unattended analysis of large numbers of samples, and can be applied to all aspects from research to quality control.
Applications of particular relevance include workplace or industrial air monitoring and large-scale product emissions testing.Sample security is ensured by the use of patented diffusion-locking technology, while operating costs are lowered (and instrument uptime is maximised) by the use of electrical cooling, which eliminates the need for liquid cryogen. TD-100 ensures peace of mind to the user by offering sample re-collection, which, as well as overcoming the ‘one-shot’ limitation of older TD systems, allows it to comply with international standard methods. Labor-saving options are also available to accommodate the addition of internal standards and for the dry-purging of particularly humid samples.