title: A modified spectrophotometric method for the determination of ammonia (and amino-acids) in natural waters, with particular reference to sea water.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D000641:Ammonia / Q000032:analysis*; D012623:Seawater / Q000032:analysis; D013053:Spectrophotometry; D014876:Water Pollution / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
chemical_list: D000596:Amino Acids; D000641:Ammonia