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Continuous Mass Spectrometric Determination of Nitric Oxide in Automotive Exhaust
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English
Abstract
Three techniques for the measurement of the oxides of nitrogen in automotive exhaust were evaluated. These included a “nitrous fume” analyzer, a gaseous NO2 colorimeter, and a movable mass spectrometer. All data obtained were compared to data from currently accepted wet chemical methods, the phenoldisulfonic acid and the “modified” Saltzman.
Of the techniques evaluated, the mass spectrometer analysis of NO has been found to be the most useful for the study of nitrogen oxides in engine exhaust. The high cost of wet chemical analysis has indicated a need for an improved and continuous analytical method. The mass spectrometer approach measures NO within seconds of its discharge, thus minimizing any reactions prior to measurement.
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Citation
Campau, R. and Neerman, J., "Continuous Mass Spectrometric Determination of Nitric Oxide in Automotive Exhaust," SAE Technical Paper 660116, 1966, https://doi.org/10.4271/660116.Also In
References
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- Wimmer D. B. McReynolds L. A. “Nitrogen Oxides and Engine Combustion,” SAE Transactions 70 1962
- Gilbert Herschler Getoor “Oxides of Nitrogen in Engine Exhaust Gas” 132nd American Chemical Society Meeting Sept. 9 1957
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- Friedel Sharkey Shultz Humbert “Mass Spectrometric Analysis of Mixtures Containing Nitrogen Dioxides,” Analytical Chemistry 25 September 1953 1314 1320