D9-o-Toluidine, 50mg

1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin , 1.2ml x 50ug/ml, nonane

17?(H),21ß(H)-(22S)-Homohopane, 500µg/mL in Isooctane, 1mL

Fenchlorphos-oxon, 100 µg/ml, Acetonitrile, 1ml