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

2-Nitrophenol, 100 µg/ml, Methanol, 1ml

2,3,4,4'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane

Hexachlorobenzene, 100 µg/ml, Methanol, 5ml