title: Tentative method of analysis for primary and secondary amines in the atmosphere (ninhydrin method).
mesh_terms: D000042:Absorption; D000397:Air Pollution / Q000032:analysis*; D000588:Amines / Q000032:analysis*; D002082:Butylamines; D004864:Equipment and Supplies; D007202:Indicators and Reagents; D008433:Mathematics; D008722:Methods; D011725:Pyridines; D013053:Spectrophotometry
chemical_list: D000588:Amines; D002082:Butylamines; D007202:Indicators and Reagents; D011725:Pyridines