PFAS Acronyms: It’s hard to know the players without a scorecard

Many of the longer chain carbon compounds analyzed as part of PFAS testing have long chemical names and can be tricky to differentiate. At Merit Laboratories, we’re always working to find ways to make it easy for our clients.  To help you out, here’s a list of acronyms used for commonly-analyzed polyfluoroalkyl substances (PFAS). 

• PFTeA: Perfluorotetradecanoic acid (CAS Number 376-06-7)
• PFTriA: Perfluorotridecanoic acid (72629-94-8)
• PFDoA: Perfluorododecanoic acid (307-55-1)
• PFUnA: Perfluoroundecanoic acid (2058-94-8)
• PFDA: Perfluorodecanoic acid (335-76-2)
• PFNA: Perfluorononanoic acid (375-95-1)
• PFOA: Perfluorooctanoic acid (335-67-1)
• PFHpA: Perfluoroheptanoic acid (375-85-9)
• PFHxA: Perfluorohexanoic acid (307-24-4)
• PFPeA: Perfluoropentanoic acid (2706-90-3)
• PFBA: Perfluorobutanoic acid (375-22-4)
• PFDS: Perfluorodecanesulfonic acid (335-77-3)
• PFNS: Perfluorononanesulfonic acid (68259-12-1)
• PFOS: Perfluorooctanesulfonic acid (1763-23-1)
• PFHpS: Perfluoroheptanesulfonic acid (375-92-8)
• PFHxS: Perfluorohexanesulfonic acid (355-46-4)
• PFPeS: Perfluoropentanesulfonic acid (2706-91-4)
• PFBS: Perfluorobutanesulfonic acid (373-73-5)
• PFOSA: Perfluorooctanesulfonamide (754-91-6)
• FtS 8:2: Fluorotelomer sulphonic acid 8:2 (39108-34-4)
• FtS 6:2: Fluorotelomer sulphonic acid 6:2 (27619-97-2)
• FtS 4:2: Fluorotelomer sulphonic acid 4:2 (757124-72-4)
• N-EtFOSAA: 2-(N-Ethylperfluorooctanesulfonamido) acetic acid (2991-50-6)
• N-MeFOSAA: 2-(NMethylperfluorooctanesulfonamido) acetic acid (2355-31-9)

Merit Laboratories offers two analytical options for PFAS. Analytical methods performed by Merit Laboratories include EPA 537 and ASTM D7979 with Isotopic Dilution. Please contact Merit Laboratories for assistance on your PFAS testing needs. Merit is Michigan’s PFAS environmental laboratory, analyzing groundwater, drinking water, and other sample matrices at our laboratory in East Lansing, Michigan. 

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