Piperophos, 100 µg/ml, Acetonitrile, 1ml

4,4'-Difluorobiphenyl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 398-23-2

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

EPA Method 509 Internal Standard