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

1,2,4,7,8-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Isoprocarb, 100 µg/ml, Acetonitrile, 5ml

1,2-Dimethylnaphthalene, 10mg