title: Identification of three neutral contaminants in production grade 2,4-D.
mesh_terms: D015085:2,4,5-Trichlorophenoxyacetic Acid / Q000032:analysis; D015084:2,4-Dichlorophenoxyacetic Acid / Q000032:analysis*; D004147:Dioxins / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007536:Isomerism
chemical_list: D004147:Dioxins; D015084:2,4-Dichlorophenoxyacetic Acid; D015085:2,4,5-Trichlorophenoxyacetic Acid