A compound identification system for gas chromatography/Fourier transform infrared spectroscopy data has been developed based on the direct comparison of interferograms. A multidimensional vector approach is used to form compound-specific vectors from the interferograms of mixture components. Comparisons are made with a set of known compound vectors by calculating how close together any two vectors lie in space. This system is used to identify the components of several synthetic mixtures.
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The 1000 vapor-phase interferograms were collected by Sadtler Research Laboratories, Inc. Philadelphia, PA and provided to us by Leo V. Azarraga of the Environmental Protection Agency, Athens, GA.
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