EPA Method 8141 Standard

N-methylperfluoro-1-butanesulfonamide, 50µg/ml in MeOH, 1,2ml

Heptafluorobutyric anhydride, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 336-59-4

EPA Method 505 Analytes Conc