4-Methoxy-2,2',5'-trichlorobiphenyl, 100µg/ml in IO, 1ml

Decabromo[13C12]biphenyl, 50µg/ml in Nonane/50% toluene, 1,2ml

Benzo(a)pyrene

Asulam,100 µg/mL,MeOH,1mL,