Thermal desorption (TD) is the ultimate sample introduction technology for gas chromatography. This technique allows you to introduce volatile (VOC) and semi-volatile (SVOC) organic compounds from a wide range of sample matrices, directly into a GC or GC/MS. Versatile, highly sensitive and fully automated, TD has become the preferred methodology for applications in environmental pollutants, material emissions, food, flavors and fragrances. With the Series 2 UNITY, ULTRA, Air Server and CIA 8 products, Markes International has advanced TD instrumentation to an unprecedented level. These products allow for efficient and accurate analysis of samples in standard sorbent tubes, real-time air or in canisters, and are fully compliant with international standards. TD technology offers significant advantages over solvent extraction: • Increased sensitivity • Compatible with solid, liquid, and gaseous samples • Fully automated • Greater than 95% recovery
This document introduces the Markes International Series 2 thermal desorption (TD) solutions, which include the UNITY, UtTRA, Air Server, and CIA 8 products. These systems are designed for the automated analysis of volatile and semi-volatile organic compounds in various sample matrices, offering high sensitivity and compliance with international standards.
| Sorbent Trapping Temperature | -30° C |
|---|---|
| Tube Capacity | up to 100 capped tubes |
| Leak Test Type | ambient temperature/no-flow |
| Recovery Rate | Greater than 95% |
Applications include atmospheric research, ambient/urban air monitoring, industrial emissions, odor assessment, and indoor air quality.
Yes, the UNITY 2 is fully upgradeable to multi-tube, multi-canister, and/or online automation.
Yes, it is fully compatible with TubeTAG devices that record tube history and facilitate sample tracking.