Benzo(a)pyrene, 10 ng/µl, 10ml

2H-Perfluoro-[1,2-13C2]-2-decenoic acid (8:2), 50µg/ml in Isopropanol, 1,2ml

2-Naphthylamine, 100 µg/ml, Acetonitrile, 1ml

Methoxychlor, 100 µg/ml, Acetone, 5ml