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Carbotrap X

Parameter Characteristics
Sorbent strength/type medium/strong carbon black
Specific surface area approx. 240 m2/g
Approx. analyte volatility range n-C3/4 to n-C6/7 (BP 50 to 150°C)
Example analytes light hydrocarbons, 1,3-butadiene, benzene (for 2-week exposure)
Sorbent maximum temperature > 400°C
Recommended conditioning temperature 350 to 400°C
Recommended desorption temperature 350 to 400°C ((but below conditioning temperature where possible)

Further information

  • hydrofobic
  • minimal inherent artifacts (<0.1 ng)
  • some activitity due to trace metals in the charcoal raw materials used for sorbent production
  • friable - susceptible to fines formation when mechanically shocked. Avoid dropping tubes containing these sorbents
  • compressable - overpacking can result in high impedance and adverseley affect pump sampling flows
  • sorbent maximum temperature must not be exceeded as sorbent will breakdown and vapourise and may contaminate your flowpath
  • 40/60 mesh is the recommended mesh size for sorbent tubes and traps
  • recommended to re-pack tubes after 200 thermal cycles

Carbopack X

Parameter Characteristics
Sorbent strength/type medium/strong carbon black
Specific surface area approx. 240 m2/g
Approx. analyte volatility range n-C3/4 to n-C6/7 (BP 50 to 150°C)
Example analytes light hydrocarbons, 1,3-butadiene, benzene (for 2-week exposure)
Sorbent maximum temperature > 400°C
Recommended conditioning temperature 350 to 400°C
Recommended desorption temperature 350 to 400°C ((but below conditioning temperature where possible)

Further information

  • hydrofobic
  • minimal inherent artifacts (<0.1 ng)
  • some activitity due to trace metals in the charcoal raw materials used for sorbent production
  • friable - susceptible to fines formation when mechanically shocked. Avoid dropping tubes containing these sorbents
  • compressable - overpacking can result in high impedance and adverseley affect pump sampling flows
  • sorbent maximum temperature must not be exceeded as sorbent will breakdown and vapourise and may contaminate your flowpath
  • 40/60 mesh is the recommended mesh size for sorbent tubes and traps
  • recommended to re-pack tubes after 200 thermal cycles

Tenax GR

Parameter Characteristics
Sorbent strength/type weak porous polymer
Specific surface area approx. 35 m2/g
Approx. analyte volatility range n-C7 to n-C30 (BP 100 to 450°C)
Example analytes aromatic compounds (except benzene), apolar components with BP >100°C, polar components with BP >150°C, PAHs, PCBs
Sorbent maximum temperature > 350°C
Recommended conditioning temperature up to 325°C
Recommended desorption temperature up to 300°C

Further information

  • hydrofobic
  • low inherent artifacts (<1 ng)
  • inert - suitable for labile compounds
  • Tenax GR (graphitised form) is the best for PAHs and PCBs
  • efficient desorption
  • sorbent maximum temperature must not be exceeded as sorbent will breakdown and vapourise and may contaminate your flowpath
  • 35/60 mesh is the recommended mesh size for sorbent tubes and traps
  • recommended to re-pack tubes after 100 thermal cycles

Tenax TA

Parameter Characteristics
Sorbent strength/type weak porous polymer
Specific surface area approx. 35 m2/g
Approx. analyte volatility range n-C7 to n-C30 (BP 100 to 450°C)
Example analytes aromatic compounds (except benzene), apolar components with BP >100°C, polar components with BP >150°C, PAHs, PCBs
Sorbent maximum temperature > 350°C
Recommended conditioning temperature up to 325°C
Recommended desorption temperature up to 300°C

Further information

  • hydrofobic
  • low inherent artifacts (<1 ng)
  • inert - suitable for labile compounds
  • Tenax GR (graphitised form) is the best for PAHs and PCBs
  • efficient desorption
  • sorbent maximum temperature must not be exceeded as sorbent will breakdown and vapourise and may contaminate your flowpath
  • 35/60 mesh is the recommended mesh size for sorbent tubes and traps
  • recommended to re-pack tubes after 100 thermal cycles

Carbograph 2TD

Parameter Characteristics
Sorbent strength/type very weak carbon black
Specific surface area approx. 12 m2/g
Approx. analyte volatility range n-C8 to n-C20
Example analytes alkyl benzenes, hydrocarbons to n-C20
Sorbent maximum temperature > 400°C
Recommended conditioning temperature 350 to 400°C
Recommended desorption temperature 350 to 400°C (below conditioning temperature)

Further information

  • hydrofobic
  • minimal inherent artifacts (<0.1 ng)
  • some activitity due to trace metals in the charcoal raw materials used for sorbent production
  • friable - susceptible to fines formation when mechanically shocked. Avoid dropping tubes containing these sorbents
  • compressable - overpacking can result in high impedance and adverseley affect pump sampling flows
  • 40/60 mesh is the recommended mesh size for sorbent tubes and cold traps
  • recommended to re-pack tubes after 200 thermal cycles

Carbopack C

Parameter Characteristics
Sorbent strength/type very weak carbon black
Specific surface area approx. 12 m2/g
Approx. analyte volatility range n-C8 to n-C20
Example analytes alkyl benzenes, hydrocarbons to n-C20
Sorbent maximum temperature > 400°C
Recommended conditioning temperature 350 to 400°C
Recommended desorption temperature 350 to 400°C (below conditioning temperature)

Further information

  • hydrofobic
  • minimal inherent artifacts (<0.1 ng)
  • some activitity due to trace metals in the charcoal raw materials used for sorbent production
  • friable - susceptible to fines formation when mechanically shocked. Avoid dropping tubes containing these sorbents
  • compressable - overpacking can result in high impedance and adverseley affect pump sampling flows
  • 40/60 mesh is the recommended mesh size for sorbent tubes and cold traps
  • recommended to re-pack tubes after 200 thermal cycles

Carbotrap C

Parameter Characteristics
Sorbent strength/type very weak carbon black
Specific surface area approx. 12 m2/g
Approx. analyte volatility range n-C8 to n-C20
Example analytes alkyl benzenes, hydrocarbons to n-C20
Sorbent maximum temperature > 400°C
Recommended conditioning temperature 350 to 400°C
Recommended desorption temperature 350 to 400°C (below conditioning temperature)

Further information

  • hydrofobic
  • minimal inherent artifacts (<0.1 ng)
  • some activitity due to trace metals in the charcoal raw materials used for sorbent production
  • friable - susceptible to fines formation when mechanically shocked. Avoid dropping tubes containing these sorbents
  • compressable - overpacking can result in high impedance and adverseley affect pump sampling flows
  • 40/60 mesh is the recommended mesh size for sorbent tubes and cold traps
  • recommended to re-pack tubes after 200 thermal cycles

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