Perfluorooctanesulfonic acid, 100µg/mL in MeOH,1ml

1,3,7,9-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

4,4'-DDT, 100 µg/ml, Cyclohexane, 1ml

gamma-Hexabromocyclododecane,50 µg/mL,toluene,1mL,