Phenthoate, 100 µg/ml, Toluene, 1ml

Sodium perfluoro-1-propanesulfonate, 50µg/ml in MeOH, 1,2ml

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

2,4,5-Trichloroaniline, 250mg