Propachlor OA, 100 µg/ml, Acetonitrile, 1ml

1,2,4,7/1,2,4,8-Tetrachlorodibenzo-p-dioxin mix, 1.2ml x 50ug/ml, nonane

Tetraethyllead, contains 50% xylene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 78-00-2

1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml