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  1. Chromservis
  2. Chromatography
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  4. Thermal desorption sorbents
  5. Carbotrap C
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Chromatography

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          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