Latest information
Expanding analytical capabilities for complex food aroma profiling
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Next-generation tube conditioning: Why reliable results start with clean tubes
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Kostenlose Symposien-Reihe von Markes
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Free-to-attend symposium series from Markes
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Mastering PFAS analysis according to ASTM D8591: A validated workflow for trace-level FTOH analysis
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Compliance and beyond: TD–GC–MS approaches for evolving air quality monitoring
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Markes and SepSolve at Pittcon 2026
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'Greener methods, smarter tools, deeper insight': Professor Elia Psillakis on modern sample preparation
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PFAS in air: A practical toolkit for real-world applications
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Embedding versatility: How Biochemie Lab future-proofed its environmental air analysis
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Velaris acquires Markes International to expand its automated sample preparation capabilities
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Mastering sorptive extraction for GC–MS
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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
Markes International
Markes is a multi-award-winning manufacturer of instrumentation and supplies that enhance GC–MS analytical capability. The company has a strong reputation for technology expertise in sample automation and concentration, including thermal desorption, SPME, headspace and high-capacity sorptive extraction. Markes’ products are used to detect trace-level VOCs and SVOCs in solids, liquids and gases. Systems are sold worldwide through global offices and a distributor network, serving research, government and industrial/service laboratories across sectors ranging from environmental monitoring and materials testing to food and beverage analysis.
Markes’ subsidiary company, SepSolve, manufactures GC×GC systems, time-of-flight mass spectrometers and associated software.
