Procymidone, 100 µg/ml, Ethyl acetate, 5ml

DL-Propranolol hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 318-98-9

Demeton-S-methyl sulfoxide, 10µg/mL in Acetonitrile, 1ml

EPA Method 8260 - Surrogate Standard