title: Confirmation of six organothiophosphorus pesticides by chemical derivatization at nanogram levels.
mesh_terms: D005278:Fenitrothion / Q000032:analysis; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D007306:Insecticides / Q000032:analysis*; D008294:Malathion / Q000032:analysis; D008722:Methods; D008832:Microchemistry; D009946:Organothiophosphorus Compounds / Q000032:analysis; D010084:Oxidation-Reduction; D010278:Parathion / Q000031:analogs & derivatives / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*; D011743:Pyrimidines / Q000032:analysis
chemical_list: D007306:Insecticides; D009946:Organothiophosphorus Compounds; D010573:Pesticide Residues; D011743:Pyrimidines; D010278:Parathion; D008294:Malathion; D005278:Fenitrothion