Naphthalene, 10 µg/ml, Cyclohexane, 10ml

D-(+)-Glucose, 250mg

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

1,2,3,7,8,9-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene