Unlabeled (ng/mL)* Perfluorobutanesulfonate (PFBS), potassium salt 5000 Perfluoropentanesulfonate (PFPS),sodium salt 5000 Perfluorohexanesulfonate (PFHxS), potassium salt (mix of isomers) 5000 Perfluoroheptanesulfonate (PFHpS), potassium salt 5000 Perfluorooctanesulfonate (PFOS),sodium salt 5000 Perfluorononanesulfonate (PFNS),sodium salt 5000 Perfluorodecanesulfonate (PFDS),sodium salt 5000 *Gravimetric concentration is based on the salt form, where applicable. Mixtures |