Fenobucarb, 100 µg/ml, Acetonitrile, 1ml

3,4-Dihydroxyphenylglycolaldehyde (Dopegal), 1mg

4-(tert-Octyl)phenol, 1000µg/ml in MeOH, 1ml

S-Metolachlor Metabolite CGA 357704, 100 µg/ml, A