4-n-Nonylphenol-mono-ethoxylate, 100 µg/ml, Aceto

EPA Method 552.1, 552.2 - Haloacetic Acids

Sodium perfluoro-1-propanesulfonate, 1.2ml x 50ug/ml, methanol

Sodium 1H,1H,2H,2H-perfluorodecane sulfonate (8:2), 50µg/ml in MeOH, 1,2ml