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Gas-Phase Detection of Fluorotelomer Alcohols and Other Oxygenated Per- and Polyfluoroalkyl Substances by Chemical Ionization Mass Spectrometry.
Riedel, Theran P; Lang, Johnsie R; Strynar, Mark J; Lindstrom, Andrew B; Offenberg, John H.
Afiliação
  • Riedel TP; National Exposure Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States.
  • Lang JR; Oak Ridge Institute for Science and Education, National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States.
  • Strynar MJ; National Exposure Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States.
  • Lindstrom AB; National Exposure Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States.
  • Offenberg JH; National Exposure Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States.
Environ Sci Technol Lett ; 6(5): 289-293, 2019.
Article em En | MEDLINE | ID: mdl-31179348
Per- and polyfluoroalkyl substances (PFAS) are incorporated into an ever-increasing number of modern products and inevitably enter the environment and ultimately human bodies. Herein, we show that chemical ionization mass spectrometry with iodide reagent ion chemistry is a useful technique for the detection of fluorotelomer alcohols (FTOHs) and other oxygenated PFAS, including per- and polyfluoro carboxylic acids such as hexafluoropropylene oxide dimer acid. This technique offers direct, high-time resolution measurement capability with parts per trillion by volume (nanograms per cubic meter) gas-phase detection limits. Measurements were taken by direct volatilization of samples without prior processing, allowing for fast measurements and reduced sample treatment compared to established PFAS methods. We demonstrate the utility of this technique by sampling volatile and semivolatile PFAS from fluoro additives and fluoro products to quantify levels of FTOHs and identify additional fluorinated compounds for which standards were unavailable.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Diagnostic_studies / Guideline Idioma: En Revista: Environ Sci Technol Lett Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Diagnostic_studies / Guideline Idioma: En Revista: Environ Sci Technol Lett Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos