Perfluoro-n-octanoic acid, 50µg/ml in MeOH, 1,2ml

EPA Method 548.1 Internal Standard

Cyprosulfamide, 100 µg/ml, Acetonitrile, 1ml

2,6-Dimethyl-4-nitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2423-71-4