Sampling VOCs with Supel™-Inert Film Gas Sampling Bags

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Sampling VOCs with Supel™-Inert Film Gas Sampling Bags with Thermogreen™ LB-2 Septa as an Alternative to Tedlar®

For 10 years, Supelco has provided our customers with high quality Tedlar gas sampling bags. Recently, we expanded our gas sampling bag line to include an alternative to Tedlar for sampling VOCs that incorporates our low-bleed Thermogreen™ LB-2 septa in the valve fitting.

 Key Features and Benefits

  • Inertness properties similar to Tedlar for a wide range of compounds
  • Suitable for sampling and analysis for most VOC’s within 2 days and many sulfur compounds for up to 24 hrs
  • Chemically inert to most acids, aliphatic, and aromatic organic compounds, chlorinated solvents and alcohols
  • Abrasion resistant
  • No static properties; unlike other alternative films, the Supel-Inert Film does not cling to bench-tops and other materials
  • Two fittings available: Push-Pull Lock Valve (PLV) and Screw Cap Valve (SCV)



Formaldehyde and Acetaldehyde Determination in Air Using Fully Automated On-Line Desorption and Analysis of DNPH Cartridges

Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form hydrazones, which are immobilized on the cartridge. These compounds can be easily eluted from the cartridge with acetonitrile and analyzed by HPLC with UV detection. Traditionally, this analysis including the workup contains a series of manual steps, which can become time-consuming and could incur experimental error. Automating the extraction...

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