Technique for Measuring the Total Concentration of Gaseous Fixed Nitrogen Species
Open Access
- 1 April 1982
- journal article
- research article
- Published by Taylor & Francis in Journal of the Air Pollution Control Association
- Vol. 32 (4) , 376-379
- https://doi.org/10.1080/00022470.1982.10465412
Abstract
This paper reports the development of a rapid, continuous technique for analyzing fixed nitrogen species (NH3, HCN, CH3NH2, etc.). The technique uses a platinum catalyst at low pressure in combination with a conventional chemiluminescent NO x analyzer. Previous workers observed that conventional stainless steel catalysts, and platinum catalysts operated at atmospheric pressure, do not reliably convert NH3 to NO. The most serious problem was the variation in the efficiency of these catalysts with operating conditions. Changes in temperature, gas composition, or XNH3 could change the conversion efficiency from 99.9% to 3 in either O2/He or O2/CO2/N2.Keywords
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