Tetrasul, 100 µg/ml, Ethyl acetate, 5ml

1,2,3-Trichloronaphthalene, 1.2ml x 50ug/ml, nonane

2,3',4',5'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

Hexachlorobenzene, 200µg/ml in MeOH, 1ml