Abstract
Due to coincidence of major peaks of nitrogen and carbon monoxide at mass 28, analysis of combustion gases for carbon monoxide content becomes difficult at concentrations below 5%. Measurement of the relative concentrations is then dependent upon the mass 12 and 14 peaks. With the <i>General Electric Analytical Mass Spectrometer,</i> the carbon monoxide mass 14 peak is approximately 1/200th and the mass 12 peak approximately 1/100th of the mass 28 peak. The nitrogen mass 14 peak is approximately 1/20th of the mass 28 peak. Thus, a small concentration of carbon monoxide in any nitrogen containing sample is not easily and accurately measurable. Chemical conversion of the carbon monoxide to some other gas could facilitate such analyses.
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