title: An efficient absorbing reagent for nitrogen dioxide.
mesh_terms: D000042:Absorption; D000397:Air Pollution / Q000032:analysis*; D000468:Alkalies; D055598:Chemical Phenomena; D002621:Chemistry; D003124:Colorimetry; D006139:Guaiacol; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D009573:Nitrites; D009585:Nitrogen Dioxide / Q000032:analysis*
chemical_list: D000468:Alkalies; D007202:Indicators and Reagents; D009573:Nitrites; D006139:Guaiacol; D009585:Nitrogen Dioxide