Thermal desorption (TD) represents 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 pollution, material emissions, and flavor/ fragrance profiling. With the TD-100™, UNITY™, UlTrA™, Air Server™ and CIA 8™ products, Markes International has advanced TD instrumentation to an unprecedented level. These systems allow efficient direct desorption of materials and accurate analysis air samples collected using sorbent tubes or canisters or monitored in real-time. They 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 A complete preparation and analysis package. all from one source. Agilent Technologies has partnered with Markes International to add thermal desorption technology to its expanding portfolio of solutions. Think of Agilent as your single source for sales, service and support of TD/GC/MS systems. Products UNITY is the heart of the TD system: Markes’ UNITY provides a versatile platform for all TD applications. Perfectly suited for a wide range of applications, including environmental applications, industrial applications, material emissions and food, beverage and personal care product analysis. It can also be seamlessly connected to Agilent GC, GC/MS, LC, LC/MS, ICP-MS and mass spectrometry instruments.
This document introduces the Series 2 range of thermal desorption instruments from Markes International, including the UNITY, UtTRA, Air Server, and CIA 8 models. These systems are designed for the automated analysis of volatile and semi-volatile organic compounds in various sample matrices such as air, water, soil, and materials.
The UNITY 2 combines single tube desorption with cryogen-free analyte re-focusing and full compatibility with various autosampler options.
These systems are suitable for automated analysis of canister/bag samples and 24/7 unattended monitoring of on-line air/gas streams.