Parathion-ethyl, 100 µg/ml, Toluene, 1ml

gamma-BHC, 1000μg/ml in MeOH, 1ml

4-n-Nonylphenol

3'-Fluoro-2,4,4',5-tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.