title: Residue analysis of chlorpyrifos and its oxygen analogue in field-treated wheat plants.
mesh_terms: D004390:Chlorpyrifos / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D014908:Triticum / Q000032:analysis*
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D004390:Chlorpyrifos