2024
Expanding PFAS Identification with Transformation Product Libraries: Nontargeted Analysis Reveals Biotransformation Products in Mice
Liu S, Dukes D, Koelmel J, Stelben P, Finch J, Okeme J, Lowe C, Williams A, Godri D, Rennie E, Parry E, McDonough C, Pollitt K. Expanding PFAS Identification with Transformation Product Libraries: Nontargeted Analysis Reveals Biotransformation Products in Mice. Environmental Science And Technology 2024, 59: 119-131. PMID: 39704186, DOI: 10.1021/acs.est.4c07750.Peer-Reviewed Original ResearchConceptsMass spectral libraryTransformation productsLiquid chromatography-high resolution mass spectrometryProduct libraryPolyfluoroalkyl substancesBiological transformation productsSpectral libraryFragmentation rulesBehavior of PFASPotential transformation productsMass spectrometryToxicity predictionChemical subclassesReaction productsLiver S9 fractionBiotransformation productsEnzymatic reactionsMutagenic toxicityReactionMouse liver S9 fractionBiological systemsS9 fractionDealkylationChemicalSpectrometry
2023
Trace analysis of per- and polyfluorinated alkyl substances (PFAS) in dried blood spots – Demonstration of reproducibility and comparability to venous blood samples
Lin E, Nason S, Zhong A, Fortner J, Godri Pollitt K. Trace analysis of per- and polyfluorinated alkyl substances (PFAS) in dried blood spots – Demonstration of reproducibility and comparability to venous blood samples. The Science Of The Total Environment 2023, 883: 163530. PMID: 37094673, PMCID: PMC10248884, DOI: 10.1016/j.scitotenv.2023.163530.Peer-Reviewed Original ResearchConceptsPolyfluoroalkyl substancesLiquid chromatography-high resolution mass spectrometryResolution mass spectrometryWater-repellent propertiesVenous blood samplesBlood samplesTrace levelsTrace analysisMass spectrometryWhole blood samplesChemical analysisAlkyl substancesHealthy adultsMan-made chemicalsAdverse health outcomesAnalytical methodBlank correctionHousehold productsHealth outcomesPFAS exposureInvasive methodBlood collectionBlood spotsCritical windowEnvironmental exposures
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