title: Determination of ethyl and methyl parathion in runoff water with high performance liquid chromatography.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D008722:Methods; D008743:Methyl Parathion / Q000032:analysis*; D010278:Parathion / Q000031:analogs & derivatives* / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*
chemical_list: D010573:Pesticide Residues; D008743:Methyl Parathion; D010278:Parathion