2-Nitrophenol, 100 µg/ml, Methanol, 1ml

Metolachlor, 100 µg/ml, Acetonitrile, 5ml

Sodium 1H,1H,2H,2H-[1,2-13C2]perfluorooctylphosphate, 1.2ml x 50ug/ml, methanol

N-Nitrosomorpholine, 100mg