- Feature patented diffusion-locking technology at either end of the sorbent bed to prevent diffusive ingress of atmospheric contaminants outside the pumped sampling period
- Significantly reduce the risk of contamination from poorly fitted or loose caps
- Prevent necking and other damage to the ends of tubes caused by over tightening of the tube seals
- Stop the ingress of volatiles from the laboratory air during routine capping and uncapping procedures
- Facilitate pumped sampling over extended periods at low (<1 mL/min) flow rates allowing the collection of time weighted average concentration data over periods of weeks or months without exceeding safe sampling volumes
- Individually etched with unique serial number for convenient sample identification
- Robust barcode—the most reliable "code 128" format—on tube for recording and tracking
- Available unconditioned or preconditioned and ready to sample. Tubes are reusable after thermal desorption for most applications
Tenax is a trademark of Buchem BV. Carboxen is a trademark of Sigma-Aldrich.