Slippery when wet. Analysis of PFCs in aqueous solutions by ASTM D7979

Characterization of Polyfluoroalkyl Substances in the Environment
Oral Presentation

Prepared by W. Lipps
Shimadzu Scientfic Instruments, 7102 Riverwood Dr, Columbia, Maryland, 21046, United States


Contact Information: wclipps@shimadzu.com; 410-910-0802


ABSTRACT

Measurement of Perfluorinated compounds is often done after solid phase extraction, concentration of the sample extract, and injection into an LCMSMS. Newer LCMSMS instruments are sensitive enough that the sample plus methanol can be direct injected into the instrument. ASTM D7979 samples small volumes of sample adding methanol directly into the sample vial eliminating loss of sample to the container walls. This presentation covers our experiments with ASTM D7979 including long-term stability, peak shape, chromatography optimization, detection limits and precision.