THE SPECTRAL CHARACTERIZATIONS OF THE LOW AND HIGH-RESOLUTION REMOTE FTIR EMISSION-SPECTROSCOPY

The spectral characterizations of the flame combustion of the low and high spectral resolution remote Fourier transform infrared emission sp ectrometry have been investigated. This study has shown the high resol ution FTIR spectroscopy has higher signal-to-noise ratio and detection sensitivity compared with the low resolution, and has measured accura tely the frequency of each spectral line of the fine structures for th e isotopic HCl35 and HCl37 bands at 2890 cm (-1). We find that the sep arations of all the doublings of the isotopic HCl35 and HCl37 decrease with decreasing the line number m. Additionally, the aim of this pape r is to select a suitable spectral resolution used in the analysis for obtaining a satisfactory result.