Assessment of the Influence of Soil Characteristics and Hydrocarbon Fuel Cocontamination on the Solvent Extraction of Perfluoroalkyl and Polyfluoroalkyl Substances
| Autor: | Jinxia Liu, Sandra Mejia-Avendaño, Sébastien Sauvé, Gabriel Munoz |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution 010401 analytical chemistry Extraction (chemistry) 010501 environmental sciences 01 natural sciences 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Ammonium hydroxide Hydrocarbon chemistry Sodium hydroxide Environmental chemistry Organic chemistry Organic matter Methanol Fluorotelomer 0105 earth and related environmental sciences |
| Zdroj: | Analytical Chemistry. 89:2539-2546 |
| ISSN: | 1520-6882 0003-2700 |
| Popis: | Sites impacted by the use of aqueous film-forming foams (AFFFs) present elevated concentrations of perfluoroalkyl and polyfluoroalkyl substances (PFAS). The characterization of the PFAS contamination at such sites may be greatly complicated by the presence of hydrocarbon cocontaminants and by the large variety of PFAS potentially present in AFFFs. In order to further a more comprehensive characterization of AFFF-contaminated soils, the solvent extraction of PFAS from soil was studied under different conditions. Specifically, the impact of soil properties (textural class, organic matter content) and the presence of hydrocarbon contamination (supplemented in the form of either diesel or crude oil) on PFAS recovery performance was evaluated for two extraction methods [methanol/sodium hydroxide (MeOH/NaOH) and methanol/ammonium hydroxide (MeOH/NH4OH)]. While both methods performed satisfactorily for perfluoroalkyl acids and fluorotelomer sulfonates, the extraction of newly identified surfactants with function... |
| Databáze: | OpenAIRE |
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