Pollution monitor for nitric oxide: a laser device based on the Zeeman modulation of absorption.
The Concentration of nitric oxide can be monitored by a new device in which the Zeeman effect is used to shift an absorption line of nitric oxide into coincidence with a laser line of carbon monoxide. The absorption is modulated by a small, oscillating magnetic field. This device is specific for nitric oxide and is not subject to interference from other gases.
D000397:Air Pollution / Q000032:analysis*; D002248:Carbon Monoxide; D007259:Infrared Rays; D007834:Lasers; D008722:Methods; D009569:Nitric Oxide / Q000032:analysis*; D013057:Spectrum Analysis
D009569:Nitric Oxide; D002248:Carbon Monoxide