Wellington Laboratories Certified Analytical Reference Standards and Materials

PFAS Mixtures of Linear and Branched Isomers

The use of quantitative and qualitative certified reference standards containing both linear and branched isomers for the analysis or perfluoroalkyl substances (PFAS) in environmental samples is detailed in multiple U.S. EPA methods. As such, Wellington has been working hard to produce characterized reference standards that meet the needs of these methods and is pleased to announce the addition of isomeric mixtures for FOSA (br-FOSA), N-MeFOSA (br-NMeFOSA), N-EtFOSA (br-NEtFOSE) to our PFAS product line. Each mixture listed below contains the linear isomer as well as monotrifluoromethyl and di-trifluoromethyl branched isomers in ratios that match technical materials as closely as possible, but with an overall chemical purity of greater than 98%.