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Short Path Thermal Desorption Tubes

Tech Tip: 3.0 mm desorption tubes are easier to seal than 4.0 mm tubes.

Features

  • Strong stainless steel (S.S.) outer shell
  • Inert glass lining
  • S.S. caps with seals to prevent contamination
  • S.S. needles attach to tubes for injection
  • Available in two inside diameters
  • Reusable with proper cleaning and conditioning

Thermal Desorption Tube

Desorption Tube with Caps

The Glass Lined Stainless Steel Desorption Tubes are available in two inside diameters, i.e. 3 mm and 4 mm. Each tube is 4.0 inch long by 1/4 inch outside diameter and is threaded on both ends. After conditioning and sample loading, the ends of the tubes are fitted with stainless steel caps with seals to maintain the integrity of the medium and sample. PTFE and Viton® seals can be used in the caps to make the seal. These same threads on the Desorption Tube also provide the means of connecting the Desorption Tubes to the desorption connector tube and the injecting syringe needle utilizing one of the 4 types of seals.

Cross section of desorption tube


Empty GLT Desorption Tubes and Accessories

Tubes should be baked out prior to use.

Desorption Tube and Caps Funnel

UOM=EA
Part No. Description ship
wt.
Quantity
In Stock
Price Quantity
to order
786005 GLT Desorption Tube, empty, 3.0mm I.D. 0.25 544$61.00(*D)
786088 GLT Desorption Tube, empty, 3.0 mm I.D., silylated 0.25 DISCONTINUED------
786002 Silco Coated SS Desorption Tube, empty, 4.0 mm I.D., serialized 0.25 257$36.00
786003 Stainless Steel Desorption Tube, empty, 4.0 mm I.D., serialized 0.25 189$24.00(*K)
781006 SS Cap for Desorption Tube, solid 0.25 203$6.00(*K)
781007 S.S. Desorption Tube Cap with 0.040in hole for conditioning GLT tube 2 617$8.75
781122 Aluminum Funnel for loading GLT desorption tube 0.25 11$53.00
(*_) Marked parts have bulk quantity discount pricing:
Discount code 'K' -- 100 or more: 10% off.
Discount code 'D' -- 100 or more: 40% off; 1000 or more: 60% off.
(#) Standard lead-time for out-of-stock items is approximately two weeks.
shopping cart Ordering information. International (non-US) prices available through your local dealer.
Part No. OD (in)ID (in)Thickness (in)Cap SealTop SealNeedle SealAcc Sealspkg ofUOM ship
wt.
Quantity
In Stock
Price / Pkg. Quantity (pkg)
to order
781004 PTFE Washers
0.210.120.06YesYesYesYes10PK 0.25 211$7.00
shopping cart Ordering information. International (non-US) prices available through your local dealer.

Indicate # of packages GLT Desorption tubes are supplied empty, without caps or seals. Tubes should be baked out prior to use.


Silylated Empty GLT Desorption Tubes

GLT tubes are also available cleaned, silylated and washed. These tubes are supplied empty, unconditioned and without caps or seals. Order caps, seals and needles seperately.

UOM=EA
Part No. Description ship
wt.
Quantity
In Stock
Price Quantity
to order
786088 GLT Desorption Tube, empty, 3.0 mm I.D., silylated 0.25 DISCONTINUED------
786002 Silco Coated SS Desorption Tube, empty, 4.0 mm I.D., serialized 0.25 257$36.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
shopping cart Ordering information. International (non-US) prices available through your local dealer.

*GLT Desorption Tubes are supplied empty, without caps or seals. Order caps and seals separately above.


Prepacked, Silylated and Conditioned GLT Desorption Tubes

GLT Tubes can be supplied ready for the collection of samples for subsequent analysis. Tubes are first cleaned, silylated, solvent rinsed and air dried. The tubes are then packed with the indicated packing between two quartz wool plugs. The packed tubes are then conditioned by ramping the temperature to 320 degrees C and holding at this temperature for 4 hours under constant carrier gas flow. The tubes are then cooled, capped and sealed to maintain their state.  These tubes are supplied complete with SS caps with PTFE seals.

Contact SIS or your local dealer for pricing.


Tenax® TA is 80/100 mesh - Tenax GR is 80/100 mesh - Carbotrap is 60/80 mesh - Carbosieve SIII is 60/80 mesh - Carboxen 569 is 20/45 mesh

Carbotrap, Carbosieve SIII and Carboxen 569 are products manufacturered by Supelco. Inc.

For specifications on the adsorbent resins see the section entitled Adsorbent Resins

Viton® is a registered trademark of DuPont Dow Elastomers
Tenax® is a registered trademark of Buchem BV.
SIS Catalog Cross Reference
Page #Part Numbers
C11 781004, 781006, 786005
C12 781004, 781006, 781007, 781122, 786002, 786003, 786005, 786088
C14 781004
C23 781007
C32 781004, 781007
C33 781004
C18 781007
C27 781007
C19 781007
C28 781004, 781007
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