Alachlor, 100 µg/ml, Acetonitrile, 5ml

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

N-Nitrosodiethylamine, 100 µg/ml, Methanol, 5ml

1,2,7,8-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene