title: Determination of residues of substituted phenylurea herbicides in grain, soil and river water by use of liquid chromatography.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002523:Edible Grain / Q000032:analysis*; D006540:Herbicides / Q000032:analysis*; D008722:Methods; D010573:Pesticide Residues / Q000032:analysis*; D010671:Phenylurea Compounds / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006540:Herbicides; D010573:Pesticide Residues; D010671:Phenylurea Compounds; D012989:Soil Pollutants; D014873:Water Pollutants; D014874:Water Pollutants, Chemical