2,4'-DDD, 10.0 µg/ml, Ethyl acetate, 10ml

2',3',4',5'-Tetrachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

Custom Mix of 4-Nonyl- and 4-t-Octylphenols ethoxylates, 100/20µg/ml in Acetone, 5x1ml

D12-Benzo[a]pyrene, 10.0 µg/ml, Cyclohexane, 10m