By using the differential optical absorption technique combined with Fourier transformation, we have achieved a good separation of ammonia from sulfur dioxide in the wavelength range 207 to 217 nm. Measurements show that, with a pathlength of two decimeters and a measuring time of one minute, we can measure less than 1.32 mg/m<sup>3</sup> [1.9 ppm (volume)] of ammonia with a standard deviation of 0.46 mg/m<sup>3</sup> [0.66 ppm (volume)] with interference from 408.73 mg/m<sup>3</sup> [156 ppm (volume)] sulfur dioxide.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription