EPA Method 8141/1657 Surrogate Standard

1H,1,H,2H,2H-Perfluorodecyl methacrylate, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1996-88-9

Nortriptyline-d3 hydrochloride (N-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 203784-52-5

Arsenic (As)