Parathion-ethyl, 100µg/ml in Acetonitrile, 5ml

Propylene carbonate, 1000mg

Pholcodine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 509-67-1

EPA Method 552.1, 552.2 - Haloacetic Acids