Chlorotoluron-desmethyl, 100 µg/ml, Acetone, 1ml

Chloroacetic Acid, 100 µg/ml, Acetonitrile, 1ml

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

Tri-n-butyl phosphate, 1.2ml x 50ug/ml, toluene