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

2-Aminoanthracene, 10.0 µg/ml, Cyclohexane, 10ml

Cobalt (Co)

1,3,4,6,8-Pentachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene