Ключевые слова:
Photometry (chemical analysis)|Precision|Distillation methods of analysis|Potable water|Wastes|Accuracy|Determination of content|Water testing|Sewage|Colorimetry|Effluents (sewage)|Chemical analysis and testing|Ion-exchange methods|Spectrophotometry|Interferences (chemical)|Water|Ammonia|Quality|Water resources|Calibration|Absorptiometry|Ammoniacal nitrogen|Ammonium inorganic compounds|Seawater