Abstract
Abstract The spectral characterizations of the flame combustion of the low and high spectral resolution remote Fourier transform infrared emission spectrometry have been investigated. This study has shown the high resolution FTIR spectroscopy has higher signal-to-noise ratio and detection sensitivity compared with the low resolution, and has measured accurately the frequency of each spectral line of the fine structures for the isotopic HCl35 and HCl37 bands at 2890 cm−1. We find that the separations of all the doublings of the isotopic HCl35 and HCl37 decrease with decreasing the line number m. Additionally, the aim of this paper is to select a suitable spectral resolution used in the analysis for obtaining a satisfactory result.
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