Application note: effect of resolution to vapour phase spectrum of HCl in the IR spectroscopy
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‘Effect of resolution to vapour phase spectrum of HCl in the infrared spectroscopy’
Selecting different resolutions for the spectrum scan, it is possible to visualise the rotation fine structure from a vapour phase of a gaseous sample. One of the most known samples is the rotation fine structure from the HCl, which is representing two isotopes: H35Cl and H37Cl. By the nature of this gas, the distance between the signals is a fine tool to show the effect of different resolutions and the effect of changing the apodisation function for recalculation of data with a Fourier transformation algorithm. This application note from Shimadzu discusses theory and apodisation in detail.
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