title: Determination of seven trace elements in natural waters after separation by solvent extraction and anion-exchange chromatography.
mesh_terms: D002852:Chromatography, Ion Exchange; D008670:Metals / Q000032:analysis; D008722:Methods; D014131:Trace Elements / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014881:Water Supply / Q000032:analysis
chemical_list: D008670:Metals; D014131:Trace Elements; D014873:Water Pollutants