Atrazin, 100μg/ml in Acetonitrile, 5ml

Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane

2,4,4-Trichlorobiphenyl (BZ-28)

Trichlorfon, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 52-68-6