2-Nitrophenol, 500mg

2,2',4,4',6,6'-Hexachloro-3,3'-dimethoxybiphenyl, 1.2ml x 50ug/ml, nonane

1,2-Dichloroethane, 100 µg/ml, Methanol, 5ml

Hexachlorobenzene, 100µg/ml in MeOH, 1ml