2-Bromothiophene in isooctane, Blank Units: 5x1mL ampoules

1,2,3,4-Tetrachloro[13C12]dibenzo-p-dioxin , 1.2ml x 50ug/ml, toluene

4,4'-DDE, 100 µg/ml, Toluene, 5ml

Demeton-O, 100 µg/ml, Ethyl acetate, 1ml