High-quality thermal desorption tubes are suitable for ppt to ppm concentrations of volatile organic compounds (VOCs) in ambient, indoor, personal, and industrial hygiene environments.

• Use corrosion-resistant glass tubes for excellent inertness
• Allow monitoring of sorbent bed condition
• Choose stainless steel tubes for greater durability in the field
• No sampling pump necessary for passive sampling with diffusion caps
• Individually etched with unique serial number for convenient sample identification
• The most reliable barcode "code 128" format on tube for recording and tracking
• Each tube has an arrow indicating flow direction to reduce errors during use
• Can be packed with any sorbent to suit any application

Fit Markes (ULTRA and UNITY™), PerkinElmer, and Shimadzu thermal desorbers

Empty tubes for direct desorption of VOCs from liquids, solids, or pastes. Available in stainless steel with front sorbent-retaining gauze, rear gauze, and gauze retaining spring supplied; or glass with glass frit positioned 15 mm from sampling end.

Packed tubes come with a report detailing the total mass of sorbent in the tube; conditioned tubes also include a blank chromatogram.