VINELAND, N.J. - ColoradoDesk -- There is increasing evidence that exposure to PFAS (Per-and Polyfluoroalkyl) can adversely affect human health. Per- and Polyfluoroalkyl substances do not break down, accumulating over time in the human body and the environment. Government regulations are increasing mandating that many materials should be tested to ensure that there are no traces of PFAS or that the traces found are below the legal limits.

PFAS are widely used in materials such as PTFE. PTFE is commonly used in chemical analysis consumables. Laboratories require labware products that do not contain PTFE to minimize background contamination.

The analytical detection method of choice for PFAS analysis is liquid chromatography - mass spectrometry – mass spectrometry (LC/MS/MS), which is especially suited for analysis of ionic compounds such as the PFSAs and PFCAs. Gas chromatography-mass spectrometry (GC/MS) can also be used for PFAS analysis. However, while LC/MS/MS analysis of PFAS is widely available, GC/MS analysis has limited commercial availability for PFAS. While most analytical methods used for PFAS utilize LC/MS/MS, just as with sample preparation, there are significant ways in which the method differ that need to be considered when selecting a method.

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Finneran Porvair has a complete product line of vials, closures, liners and kits suitable for PFAS Testing.

The Finneran Porvair product offerings include 1mm polyimide/silicone lined closures, unlined polypropylene and polyethylene closures and polypropylene vials in 9mm screw thread and 11mm crimp finishes. We also offer our closures and vials in a variety of convenience kits.

Closures used in PFAS Testing

Unlined closures have a 10mil thick membrane molded into the closure eliminating the need for a liner. These unlined closures perform well for single injection testing.

For the lined closures, the 1mm thick polyimide is amber translucent and the white silicone rubber is a high purity rubber composition resulting in low leachables. This new closure has a useable temperature range up to 130°C and performs well up to ten injections.

Vials used in PFAS Testing

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Polypropylene vials are designed to work in most autosamplers. These lightweight vials are an economical alternative to glass.  Manufactured from chemical resistant polypropylene, they are ideal for PFAS sampling, testing, storing and transporting.

Convenience Kits used in PFAS Testing

Components packaged in a clear lid tray, keeping vials and closures visible and particle free.

PFAS Testing Products can be purchased from the Laboratory Supply Distributors Corp. website at www.lsdc..com.