title: New sensitive method for quantitative assay of ammonia in air.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D000588:Amines / Q000032:analysis; D000641:Ammonia / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008722:Methods; D012997:Solvents; D013053:Spectrophotometry
chemical_list: D000588:Amines; D007202:Indicators and Reagents; D012997:Solvents; D000641:Ammonia