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
