Bromophos-ethyl, 100 µg/ml, Toluene, 1ml

Propionic acid, 1ml

Methomyl, 100 µg/ml, Acetonitrile, 5ml

1,2,4,6,7,9-Hexachloro(13C12)dibenzo-p-dioxin, 1.2mL x 50ug/mL, toluene