Focusing (cold) traps for UNITY-xr, TD-100, Centri
Markes’ focusing traps for UNITY-xr are made of quartz and contain up to 60 mm of sorbent. The unique collared design allows the user to easily insert and remove traps between applications (or for maintenance purposes), without the assistance of a service engineer. Traps are also compatible with UNITY series 2, TD-100 (all series) and Centri.
- Approved by the instrument manufacturer
- Precision-engineered, and quality-tested in-house
- Traps can contain multiple sorbents for analysis of an extended range of analytes
Product List
Showing 25/25 results
Focusing trap- High Boilers, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T1HBL-2S
Focusing trap- General Purpose (Hydrophobic), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T2GPH-2S
Focusing trap- Air Toxics (TO-14), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T3ATX-2S
Focusing trap- Water Management, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T4WMT-2S
Focusing trap- Ozone Precursor/Freons, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T5O3F-2S
Focusing trap- Sulfur (Labile), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T6SUL-2S
Focusing trap- empty, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T7EMP-2S
Focusing trap- Tenax, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T9TNX-2S
Focusing trap- Chemical Weapons, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T10CW-2S
Focusing trap- General Purpose (Graphitised Carbon), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T11GPC-2S
Focusing trap- Material Emissions, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T12ME-2S
Focusing trap- Dynaminc Headspace (DHS), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T13DHS-2S
Focusing trap- Hydrogen Sulphide (H2S), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T14H2S-2S
Focusing trap- Air Toxics Analyser, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T15ATA-2S
Focusing trap- Green House Gases Analyser, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T16GHG-2S
Focusing trap- Ozone Precursor, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T17O3P-2S
Focusing trap- Method 325, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T18325-2S
Focusing trap- PAH/SVOC, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T19PAH-2S
Focusing trap- Photochemical Assessment Monitoring Stations (PAMS), for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T20PAM-2S
Focusing trap- China Air 117, for UNITY-xr (and series 2)- TD-100 (all series) and Centri
Usually ships in 1-3 bus. days
Product Code
U-T22117-2S
Focusing trap- Trace TO-15, For UNITY-xr (and series 2) with Kori-xr
Usually ships in 1-3 bus. days
Product Code
U-TO15-KXR
Focusing trap, EPA HJ 759, For UNITY-xr (and series 2) with Kori-xr
Usually ships in 1-3 bus. days
Product Code
U-HJ759-KXR
Focusing trap - Ethylene Oxide, For UNITY-xr (and series 2) with Kori-xr
Usually ships in 1-3 bus. days
Product Code
U-T23ETO-2S
Focusing trap, PFAS, for UNITY-xr (and series 2), TD-100 (all series), and Centri
Usually ships in 1-3 bus. days
Product Code
U-T24PFAS-2S
Focusing trap, Ozone Depleting Substances (ODS), for UNITY-xr, TD100-xr, Centri
Usually ships in 1-3 bus. days
Product Code
U-T25ODS-2S
Overview
There are a range of optimised focusing traps available from Markes to suit a wide variety of applications and methods. Markes also provides empty traps and sorbents for self-packing, and a custom packing service – please contact sampletech@markes.com to discuss your requirements.
Markes’ instruments allow the focusing trap to be cooled to –30°C without liquid cryogen, significantly improving retention of ultra-volatile organics from air/gas samples compared to other systems. Traps have a wide enough bore to prevent ice blockage, yet can be heated up to 100°C/s to allow efficient desorption at flows down to 1.5 mL/min.
Focusing traps for the UNITY and TD-100 series are narrower at the GC end to optimise linear gas velocity and minimise band broadening.
Focusing traps allow:
- Re-collection: Splitting the flow of analytes before and/or after desorption of the focusing trap allows collection of the unanalysed portion onto a second sorbent tube. This overcomes the ‘one-shot’ drawback of older TD systems and means that the sample can be analysed under different TD–GC conditions, aiding method development or validation.
- Backflush desorption of the focusing trap: Collecting the sample onto the sorbent tube or focusing trap in the opposite direction to desorption (‘backflush desorption’) allows use of multiple sorbent beds, extending the range of compounds that can be collected and analysed from a single sample.
Note: These traps are not compatible with UNITY series 1.
UNITY-xr traps for use with the Kori-xr water management system are specifically designed and optimised to fit in a UNITY-xr when in-line with Kori-xr. Markes does not recommend using these traps for systems not using Kori-xr.
Part numbers:
U-T10CW-2S - U-T11GPC-2S - U-T12ME-2S - U-T13DHS-2S - U-T14H2S-2S - U-T15ATA-2S - U-T16GHG-2S - U-T17O3P-2S - U-T18325-2S - U-T19PAH-2S - U-T1HBL-2S - U-T20PAM-2S - U-T22117-2S - U-T2GPH-2S - U-T3ATX-2S - U-T4WMT-2S - U-T5O3F-2S - U-T6SUL-2S - U-T7EMP-2S - U-T9TNX-2S - U-TO15-KXR - U-T23ETO-2S - U-T24PFAS-2S
