Hexachlorobenzene, 100 µg/ml, Ethyl acetate, 1ml

4-Hydroxyamphetamine HCl, 1000µg/ml in MeOH, 1ml

Perfluoro-n-tridecanoic acid, 1.2ml x 50ug/ml, methanol

m-Toluidine, 100 µg/ml, Methanol, 5ml