title: Nitric oxide air pollution: detection by optoacoustic spectroscopy.
abstract: Nitric oxide is detected by a new technique in which tunable infrared radiation from a spin-flip Raman laser is used to measure the absorption spectrumn of a gas sample by optoacoustic spectroscopy. This technique is sensitive enough to detect a concentration of 0.01 part per million of nitric oxide pollution in air samples.
mesh_terms: D000388:Air / Q000032:analysis; D000397:Air Pollution; D007834:Lasers; D008722:Methods; D009569:Nitric Oxide / Q000032:analysis; D013057:Spectrum Analysis
chemical_list: D009569:Nitric Oxide