Tebupirimfos, 100 µg/ml, Ethyl acetate, 5ml

2-Chloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

iso-Chloridazon, 100 µg/ml, Acetonitrile, 1ml

a,a,a-Trichlorotoluene