Redefining the Efficiency of Automated PFAS Extraction following EPA Method 1633 for Large-Volume Samples

Per- and Polyfluoroalkyl Substances (PFAS) in the Environment
Poster Presentation

Presented by J. Nichol
Prepared by I. Wan
PromoChrom Technologies, 13351 Commerce Parkway, Unit 1103, Richmond, BC, V6V 2X7, Canada


Contact Information: [email protected]; 778-723-0421

ABSTRACT

Solid Phase Extraction (SPE) is employed by EPA Method 1633 for the extraction of PFAS across a range of matrices. Despite its critical role in achieving necessary detection limits and accurate recoveries, the SPE process can be arduous and time-consuming. While some laboratories have reduced sample volume to expedite extraction, this approach is constrained by instrumentation sensitivity and matrix complexity, with labs using older equipment or handling wastewater samples often unable achieve detection limits with volumes below 250 or 500 mL.

Since 2021, PromoChrom has helped labs automate this method starting from its draft stages. Acknowledging the significance of EPA Method 1633 in PFAS testing now that it is published, PromoChrom is dedicated to enabling a seamless implementation of this method with minimal cost and hassle.

This poster shares the recent breakthrough to achieve considerable time savings of running EPA Method 1633 for samples of 250 mL or larger, using a new automated extractor along with the latest anti-clogging solutions. Results and learnings from the development process will also be discussed.