Parathion-ethyl, 100μg/mL in Acetonitrile, 1ml

o-Toluic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 118-90-1

Benzo[a]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 203-33-8

EPA Method 8040 - Surrogate Standard