Recent Applications of Fourier Transform Infrared Spectrometry in Chemical and Environmental Analysis

Abstract

Several different applications of Fourier transform infrared (FT-ir) spectrometry being developed at Ohio University are described. A dual-beam FT-ir system which enables identifiable GC-ir spectra to be measured from less than 100 ng of material is described. A method for removing the solvent from the effluent from a high performance liquid chromatograph is proposed, together with a device for on-line LC-ir at the submicrogram level. Calculations showing the effect of the instrument line shape function of an FT-ir spectrometer used with or without apodization on Lorentzian absorption bands are described, and the implications of the results of these calculations on spectral subtraction and remote sensing experiments are discussed.