< Air Monitoring & Gas Sampling < Thermal Desorption Unit Tubes

Thermal Desorption Unit Tubes: Unconditioned, Conditioned & Capped

To see which VOC sampling technique is right for you, click here.

Variety of sorbents to collect a wide range of VOCs, including Tenax® and carbon sorbents.
Use glass tubes for maximum inertness in active sampling.
Choose stainless steel tubes for either active or passive sampling. No sampling pump necessary for passive sampling with diffusion caps!
Individually etched with unique serial number for convenient sample identification.
Available unconditioned or preconditioned and ready to sample. Tubes are reusable after thermal desorption.

High-quality thermal desorption tubes by Markes International. These sorbent tubes are suitable for ppt to ppm concentrations of volatile organic compounds (VOCs) in ambient, indoor, and industrial hygiene environments. Available in both stainless steel and glass (for thermally labile VOCs), they fit Markes ULTRA-UNITY™, PerkinElmer, and Shimadzu thermal desorbers. Packed tubes come with a report detailing the total mass of sorbent in the tube; conditioned tubes also include a blank chromatogram.

Thermal Desorption Tube Sorbent Applications
Tenax TA Vapor phase organics from C6/7 to C26
Graphitized Carbon Vapor phase organics from C5/6 to C14
Tenax GR/Carbopack B Vapor phase organics from n-C5/6 to n-C20 (EPA Methods TO-14A/TO-15/TO-17)
Carbopack B/Carbosieve SIII Vapor phase organics from n-C2/3 to n-C12/14 (EPA Methods TO-14A/TO-15/TO-17)
Tenax TA/Graphitized Carbon/Carboxen 1000 Vapor phase organics from C2/3 to C20
Carbopack C/Carbopack B/Carbosieve SIII Vapor phase organics from n-C2/3 to n-C16/20 (EPA Methods TO-14A/TO-15/TO-17)

Method Application
US EPA TO-17
ASTM D-6196
NIOSH 2549
DIN EN ISO 16017

Specifications
Dimensions: 1/4" OD x 3- 1/2" long
Low sampling rates:
0.01-0.20 L/min.
(<10L total volume)
Long-term storage caps are supplied with conditioned tubes

Description	Material	qty.	Cat.#	Price	Wish list	Cart
Unconditioned
TDU Tubes, Tenax TA	Stainless Steel	10-pk.	24056

TDU Tubes, Tenax TA	Glass	10-pk.	24062

TDU Tubes, Graphitized Carbon	Stainless Steel	10-pk.	24057

TDU Tubes, Graphitized Carbon	Glass	10-pk.	24063

TDU Tubes, Tenax GR/Carbopack B	Stainless Steel	10-pk.	24058

TDU Tubes, Tenax GR/Carbopack B	Glass	10-pk.	24064

TDU Tubes, Carbopack B/Carbosieve SIII	Stainless Steel	10-pk.	24059

TDU Tubes, Carbopack B/Carbosieve SIII	Glass	10-pk.	24065

TDU Tubes, Tenax TA/Graphitized Carbon/Carboxen 1000	Stainless Steel	10-pk.	24060

TDU Tubes, Tenax TA/Graphitized Carbon/Carboxen 1000	Glass	10-pk.	24066

TDU Tubes, Carbopack C/Carbopack B/Carbosieve SIII	Stainless Steel	10-pk.	24061

TDU Tubes, Carbopack C/Carbopack B/Carbosieve SIII	Glass	10-pk.	24067

Conditioned & Capped
TDU Tubes, Tenax TA	Stainless Steel	10-pk.	24080

TDU Tubes, Tenax TA	Glass	10-pk.	24086

TDU Tubes, Graphitized Carbon	Stainless Steel	10-pk.	24081

TDU Tubes, Graphitized Carbon	Glass	10-pk.	24087

TDU Tubes, Tenax GR/Carbopack B	Stainless Steel	10-pk.	24082

TDU Tubes, Tenax GR/Carbopack B	Glass	10-pk.	24088

TDU Tubes, Carbopack B/Carbosieve SIII	Stainless Steel	10-pk.	24083

TDU Tubes, Carbopack B/Carbosieve SIII	Glass	10-pk.	24089

TDU Tubes, Tenax TA/Graphitized Carbon/Carboxen 1000	Stainless Steel	10-pk.	24084

TDU Tubes, Tenax TA/Graphitized Carbon/Carboxen 1000	Glass	10-pk.	24090

TDU Tubes, Carbopack C/Carbopack B/Carbosieve SIII	Stainless Steel	10-pk.	24085

TDU Tubes, Carbopack C/Carbopack B/Carbosieve SIII	Glass	10-pk.	24091

Click thumbnails to see enlarged view.

24062 TDU Tubes, Glass, Tenax® TA, Unconditioned, 10-pk.	24061 TDU Tubes, SS, Carbopack C/Carbopack B/Carbosieve SIII, Unconditioned, 10-pk.	24067 TDU Tubes, Glass, Carbopack C/Carbopack B/Carbosieve SIII, Unconditioned, 10-pk.