Fenuron, 10 µg/ml, Acetonitrile, 10ml

Perfluoro-n-[1,2-13C2]tetradecanoic acid, 50µg/ml in MeOH, 1,2ml

1,2,3,7,8-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

1,3,7,8-Tetrabromodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene