title: Determination of diquat and paraquat residues in soil by gas chromatography.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D004178:Diquat / Q000032:analysis*; D005069:Evaluation Studies as Topic; D006540:Herbicides / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D006865:Hydrogenation; D010269:Paraquat / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis; D012987:Soil / Q000032:analysis*
chemical_list: D006540:Herbicides; D010573:Pesticide Residues; D012987:Soil; D004178:Diquat; D010269:Paraquat