Automated Extraction Method of PFAS From Different Environmental Matrices

Polyfluoroalkyl Substances (PFAS) in the Environment
Oral Presentation

Prepared by A. Stell, C. Cashman
CEM Corporation, 3100 Smith Farm Rd., Matthews, NC, 28106, United States


Contact Information: [email protected]; 704-821-7015

ABSTRACT

There is increasing concern of Per- and Polyfluoroalkyl Substances (PFAS) in our environment as a whole, due to their persistent nature. More and more regulation regarding PFAS is being implemented. Having a harmonized method to accurately determine the PFAS content in soil as well as other matrices is important to this industry. The extraction of PFAS can be challenging given the susceptibly to contamination and the low levels in which these compounds are present. Existing techniques are predominately manual methods that are not rapid, simple, and efficient. In this study, an automated extraction system, the EDGE, combines the processes of pressurized fluid extraction and dispersive solid phase extraction is explored. This method offers efficient extraction of PFAS from any matrix in less than 10 minutes in one simple process, where the final extract is filtered and ready for analysis. Excellent extraction recovery and reproducibility of PFAS from soil, biosolids, and a certified reference material (CRM) is presented. The EDGE method offers a rapid, simple, and efficient solution for PFAS testing.