Why and What is PFAS all about?
There is increasing evidence that exposure to PFAS (Per-and Polyfl uoroalkyl) can adversely aff ect human health. Per- and Polyfl uoroalkyl 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.
Finneran Porvair has a complete product line of vials, closures, liners and kits suitable for PFAS Testing. Their product offerings include 1mm polyimide/silicone lined closures, unlined polypropylene and polyethylene closures and polypropylene vials in 9mm screw thread and 11mm crimp finishes. They also offer our closures and vials in a variety of convenience kits.