M537 PFC analysis challenges
Posted: Thu Jun 18, 2020 4:57 pm
Hi all, I am working on setting up a new EPA Method 537 at our lab for the analysis of perfluorinated compounds. We are having trouble with low recoveries of the lighter/early eluting compounds (i.e. PFBS, PFHxA). Everything recovers well when run as a pure standard, but the problem arises when doing the extraction with actual water samples. Anyone have thoughts on possible causes of the losses? Thanks!