title: Ion chromatographic determination of nitrate and sulfate in natural waters containing humic substances.
mesh_terms: D002852:Chromatography, Ion Exchange / Q000379:methods; D006812:Humic Substances / Q000032:analysis*; D009566:Nitrates / Q000032:analysis*; D013431:Sulfates / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006812:Humic Substances; D009566:Nitrates; D013431:Sulfates; D014873:Water Pollutants; D014874:Water Pollutants, Chemical