Markes International offers an extensive range of sorbents commonly used for thermal desorption applications.  Please contact us (enquiries@markes.com) directly if you required any alternative sorbents. 

Markes staff have considerable experience in recommending specific sorbents or combinations of sorbents for individual vapour monitoring applications.  If you are unsure about which sorbent to use or would like confirmation of your choice of sorbent(s), please download our applications enquiry form now, for recommendations tailor made to your application.

Generally sorbents are classified as porous polymers, modified carbon blacks, carbonised molecular sieves, molecular sieves or resins and the range that are available includes (but is not limited to):

• Tenax TA™ and Tenax GR™
  
  
• Chromosorb 106™, Chromosorb 102™ and other Chromosorb Century series sorbents
  
  
• Poropak Q™, Poropak N™, Poropak S and other Poropak series sorbents 
  
  
• HayeSep D™, and other HayeSep series sorbents
  
  
• Carbopack B™, Carbotrap™, Carbopack C™, Carbotrap C™, Carbopack X™, GCB1™, Carbograph 1TD™, Carbograph 2TD™, Carbograph 3TD™, Carbograph 5TD™ and other graphitised carbon black sorbents
  
  
• Carbosieve SIII™, Carboxen 1000™, Carboxen 569™, UniCarb™ (formerly known as Spherocarb™) and other carbonised molecular sieves
  
  
• Molecular Sieve 5Å and Molecular Sieve 13X 
  
  
• Silica Gel, XAD-2 and other resins

For part numbers and pricing please contact your local Markes distributor or visit our on-line shop

Relevant technical support publications from Markes International can be automatically downloaded from this web site (registration required). Examples include:

• Brochure - Thermal Desorption and Air Monitoring Products
• TDTS 5 - Advice on sorbent selection and conditioning sample tubes
• TDTS 20 - Determining and validating safe sampling volumes

Other sorbent tubes and accessories available from Markes include Sorbent tubes, SafeLok tubes, Sorbent tube accessories, Certified Reference Standards, Diffusive sampling accessories, TubeTAG

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