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  • Ruyle, Bridger J.Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States (author)

Interlaboratory Comparison of Extractable Organofluorine Measurements in Groundwater and Eel (Anguilla rostrata) : Recommendations for Methods Standardization

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • American Chemical Society (ACS),2023
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:oru-109627
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-109627URI
  • https://doi.org/10.1021/acs.est.3c04560DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Funding Agency:National Institute for Environmental Health Sciences (NIEHS) Superfund Research Program P42ES027706 P42ES031009
  • Research on per- and polyfluoroalkyl substances (PFAS) frequently incorporates organofluorine measurements, particularly because they could support a class-based approach to regulation. However, standardized methods for organofluorine analysis in a broad suite of matrices are currently unavailable, including a method for extractable organofluorine (EOF) measured using combustion ion chromatography (CIC). Here, we report the results of an international interlaboratory comparison. Seven laboratories representing academia, government, and the private sector measured paired EOF and PFAS concentrations in groundwater and eel (Anguilla rostrata) from a site contaminated by aqueous film-forming foam. Among all laboratories, targeted PFAS could not explain all EOF in groundwater but accounted for most EOF in eel. EOF results from all laboratories for at least one replicate extract fell within one standard deviation of the interlaboratory mean for groundwater and five out of seven laboratories for eel. PFAS spike mixture recoveries for EOF measurements in groundwater and eel were close to the criterion (±30%) for standardized targeted PFAS methods. Instrumental operation of the CIC such as replicate sample injections was a major source of measurement uncertainty. Blank contamination and incomplete inorganic fluorine removal may introduce additional uncertainties. To elucidate the presence of unknown organofluorine using paired EOF and PFAS measurements, we recommend that analysts carefully consider confounding methodological uncertainties such as differences in precision between measurements, data processing steps such as blank subtraction and replicate analyses, and the relative recoveries of PFAS and other fluorine compounds.

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  • Pickard, Heidi M.Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States (author)
  • Schultes, LaraHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States (author)
  • Fredriksson, Felicia,1993-Örebro universitet,Institutionen för naturvetenskap och teknik,MTM Research Centre(Swepub:oru)ffn (author)
  • Heffernan, Amy L.Eurofins Environment Testing Australia, Murarrie 2066, Queensland, Australia (author)
  • Knappe, Detlef R. U.Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States (author)
  • Lord, Heather L.Bureau Veritas, Mississauga, Ontario L5N 0C9, Canada (author)
  • Meng, PingpingDepartment of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States (author)
  • Mills, Marc A.Center for Environmental Solutions and Emergency Response, Office of Research and Development, United States Environmental Protection Agency, Cincinnati, Ohio 45268, United States (author)
  • Ndungu, KuriaNorwegian Institute for Water Research (NIVA), Oslo N-0349, Norway (author)
  • Roesch, PhilippFederal Institute for Materials Research and Testing, Berlin 12205, Germany (author)
  • Rundberget, Jan ThomasNorwegian Institute for Water Research (NIVA), Oslo N-0349, Norway (author)
  • Tettenhorst, Daniel R.Center for Environmental Solutions and Emergency Response, Office of Research and Development, United States Environmental Protection Agency, Cincinnati, Ohio 45268, United States (author)
  • Van Buren, JeanCenter for Environmental Solutions and Emergency Response, Office of Research and Development, United States Environmental Protection Agency, Cincinnati, Ohio 45268, United States (author)
  • Vogel, ChristianFederal Institute for Materials Research and Testing, Berlin 12205, Germany (author)
  • Westerman, Danielle C.Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States (author)
  • Yeung, Leo W. Y.,1981-Örebro universitet,Institutionen för naturvetenskap och teknik,MTM Research Centre(Swepub:oru)lyg (author)
  • Sunderland, Elsie M.Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Cambridge, Massachusetts 02138, United States; Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, United States (author)
  • Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United StatesInstitutionen för naturvetenskap och teknik (creator_code:org_t)

Related titles

  • In:Environmental Science and Technology: American Chemical Society (ACS)57:48, s. 20159-201680013-936X1520-5851

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