Perfluoro-n-[1,2-13C2]octanoic acid, 50µg/ml in MeOH, 1,2ml

Asulam, 100 µg/ml, Acetonitrile, 5ml

Benzo[j]fluoranthene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-82-3

PCB No. 50, 100µg/ml in Isooctane, 1ml