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Showing 1 to 7 of 7 for “"PFBA"”.
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Transport of Per- and Polyfluoroalkyl Substances (PFAS) at a Managed Aquifer Recharge Site
… examined in this study: perfluorobutanoic acid (PFBA), perfluorobutane sulfonic acid (PFBS), perfluoropentanoic acid (PFPeA), perfluorohexanoic acid (PFHxA), perfluorohexane sulfonic acid (PFHxS), perfluoroheptanoic acid (PFHpA), and perfluorooctanoic acid (PFOA). Among these PFAS, five are …
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Thermal Decomposition Mechanisms of Per- and Polyfluoroalkyl Substances and Application to Analysis of Total Organofluorine
… acid (PFPrA) and perfluorobutyric acid (PFBA) in nitrogen and oxygen at temperatures from 200 °C to 780 °C were investigated. Also, platinum was used as packing material to study potential surface catalysis effects. O2 can facilitate thermal defluorination by reacting with PFCAs directly …
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Metabolic, neurotoxic and immunotoxic effects of PFAAs and their mixtures on the proteome of plasma and head kidney from rainbow trout
… individual PFAAs (25 nM of PFOS, PFOA, PFBS or PFBA). Untargeted proteomics and phosphorylated metabolomics were conducted on the blood plasma and head kidney tissue to evaluate differences in biological effect for congeners and mixtures. The mixture and PFOS exposures significantly altered the …
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SYNTHESIS OF PERFLUOROHETEROAROMATIC POLYMERS FOR ION-CONDUCTING MEMBRANE FUEL CELLS VIA FREE RADICAL-BASED REACTIONS AND SYNTHESIS OF DI-CATIONIC IONIC LIQUIDS AS EFFICIENT SO2 ABSORBENTS
… proton-exchange membranes perfluorobenzoic acid (PFBA) and perfluorobenzenesulfonic acid (PFBSA)—were synthesized for proton-exchange membrane fuel cells via the free radical-based reaction. The physical properties, in-plane ionic conductivities and fuel cell performance of two membranes were …
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Per- and Polyfluoroalkyl Substances (PFAS) in Air, Water, and Soil and Their Impact on Air Quality
… partitioning, except for the PFOA-PFBA anomaly (r=0.859), suggesting a common local source. PMF identified six sources in precipitation and five in water, with AFFF and food packaging as major contributors. Chapter 3 revealed distinct PFAS signatures in soil and rainfall, with soils …
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Structural studies of supramolecular host-guest systems
… for short perfluorocarbon chains (i.e., PFBA) where the gauche conformation of the PFC guest in the bound state was favoured. In the second theme (chapters 6–8), β-CD based copolymers were used as host materials. The structural characterization of a soluble poly-CD material (known as …
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DETERMINATION OF CONTAMINANTS IN FISHERY PRODUCTS TO SUPPORT FOOD SAFETY
… analysis, the study reveals the presence of PFBA and PFOS in both lake and sea fish, with PFBS exclusively found in lake fish. The observed concentrations were used to estimate the intake of PFOS, highlighting that the recommended tolerable weekly intake (TWI) by EFSA was not exceeded, even …