Use of Graphitized Carbon Black for Matrix Cleanup in the Analysis of Per- and Poly-fluoroalkyl Substances

Polyfluoroalkyl Substances (PFAS) in the Environment
Poster Presentation

Prepared by M. Giardina
Agilent Technologies, 2850 Centerville Rd, Wilmington, DE, 19808, United States


Contact Information: [email protected]; 302-636-8211

ABSTRACT

Graphitized carbon black (GCB) is a common sorbent used for reducing matrix interferences when extracting per- and poly-fluoroalkyl substances (PFAS) from complex environmental matrices such as sediments, soils, sludges, and nonpotable water. For certain regulated methods, the use of GCB is mandated such as the U.S. Department of Defense guidelines (DOD QSM 5.1/5.3). Ideally, the GCB should remove matrix interferences that affect quantitation and method robustness while not significantly reducing PFAS recovery or adding interferences. In this poster, the use of GCB for the extraction of PFAS compounds from environmental extracts is studied in detail. The effectiveness of GCB for the removal of matrix interferences will be presented for a variety of environmental samples and PFAS compounds.