Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml

Chlorfenvinphos, 10 ng/µl, 10ml

θ-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

4,4'-Diaminodiphenylmethane, 100 µg/ml, Acetonitr