Mepronil, 10 µg/ml, Ethyl acetate, 10ml

2,2',3,3',4-Pentachlorobiphenyl

4,4'-Dibromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

5-Nitro-o-toluidine,100 µg/mL,acetonitrile,1mL,