Analytical Fate of Ultra-Short Chain PFAS and Inorganic Fluorine in EOF and AOFPer- and Polyfluoroalkyl Substances (PFAS) in the Environment
Oral Presentation
Prepared by D. Schiessel, R. Cahill
Babcock Laboratories, Inc., 6100 Quail Valley Ct, Riverside, CA, 92507, United States
Contact Information: [email protected]; 951-653-3351
ABSTRACT
Current methods proposed to monitor total organic fluorine (TOF) for routine analysis each have their advantages and disadvantages. This is of particular importance for drinking water which is dominated by ultra-short chain Polyfluorinated Alkyl Substances (PFAS) like Trifluoroacetic acid. This work aimed to characterize how ultra-short chains (USCs) perform by extractable and adsorbable preparation techniques. In addition to USC carboxylates and sulfonates, this work sought to assess analytical fate for representative PFAS that are volatile, neutral, cationic, or classified as inorganic as in the case of hexafluorophosphate (PF6) and tetrafluoroborate (BF4) anions. Topics to be covered include the extraction efficiency of these relevant analytes as well as mass transfer efficiency via combustion ion chromatography.
