Sulfite (SO32-),1000µg/mL in Water, 3 x 20ml

2,3,3',4',5,5'-Hexachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

Benzo(e)pyrene, 100µg/ml in Cyclohexane, 5ml

Eicosanoic acid (Arachidic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-30-9