title: Semiquantitative potentiometric method for direct measurement of nitrogen dioxide in air.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D004566:Electrodes; D008567:Membranes, Artificial; D008722:Methods; D009585:Nitrogen Dioxide / Q000032:analysis*; D011199:Potentiometry / Q000379:methods*
chemical_list: D000393:Air Pollutants; D008567:Membranes, Artificial; D009585:Nitrogen Dioxide