Flexible sample automation for your GC
Upgrade your GC analysis with the Centri 180 sample automation and concentration platform.
Centri 180 integrates PAL3 robotic automation with Markes’ cryogen-free focusing trap technology, offering: Headspace, SPME, TD, and HiSorb workflows on a single platform. Enhanced sensitivity. Versatile carrier gas options – Use helium, nitrogen, or hydrogen.
Latest information
Switching to hydrogen carrier gas: An analyst’s guide to GC–MS method conversion
Explore
Examining flavour profiles of tea and coffee using automated sorptive extraction and advanced chemometric data-mining for GC–MS analysis – An approach for exploring food sample variability
Explore![Markes TD Brochure Hero3 Corepurple[2]](/media/zmscvqds/markes-td-brochure-hero3-corepurple-2.jpg?crop=0.55128205128205132,0,0,0&cropmode=percentage&width=350&height=260&rnd=132399686846500000)
Instruments for monitoring ozone-depleting substances and greenhouse gases
Explore
Markes International and SepSolve Analytical exhibit at the James B. Beam Institute, Annual Conference, 2025
Explore
Markes International and SepSolve Analytical to jointly exhibit at ANAKON 2025
Explore
Markes International and SepSolve Analytical at Pittcon 2025
Explore
EPA Method 327: A technical perspective on ethylene oxide monitoring
Explore
Real-world implementation of dual canister and tube analysis of hazardous air pollutants using TD–GC–MS
Explore
Versatile tools for high-sensitivity flavour and aroma analysis
Explore
Advancements in near-real-time monitoring for chemical warfare agents: enhancing detection and field deployment capabilities
Explore
Beyond air monitoring: Advancements in trace level detection of chemical warfare agents and toxic chemicals in environmental matrices and contaminated materials
Explore
Monitoring produced gases From PFAS destruction technologies in line with OTM-50
Explore
What is thermal desorption?
Thermal desorption (TD) is a versatile preconcentration technique for gas chromatography, which is used to analyse volatile and semi-volatile organic compounds from solids, liquids or gases.
Find out more by downloading our introductory e-book which explains more about the technique and it's place in the analytical laboratory
Sampling supplies & consumables catalogue
Just published! Get your Markes 2025 Sampling supplies and consumables catalogue.
Markes International
Markes International is a multi-award-winning manufacturer of instrumentation and supplies that enhance the analytical capability of GC–MS. Markes has a well-deserved reputation for its technology expertise in the field of sample automation and concentration (thermal desorption, SPME, headspace and high-capacity sorptive extraction). Markes' products are used for the detection of trace-level VOCs and SVOCs in solids, liquids and gases. The company's systems are sold worldwide, through its own global offices and network of distributors. Markes' customers encompass research, government and industrial/service laboratories, in a wide range of sectors from environmental monitoring to materials testing, and food & beverage analysis.
Markes' sister company, SepSolve Analytical Ltd, is a manufactuer of GC×GC, time-of-flight mass spectrometers and associated software
