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Gas chromatography-fourier transform infrared spectrometry of fatty acids: New applications with a direct deposition interface

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Journal of the American Oil Chemists' Society

Abstract

Infrared spectroscopy is a suitable spectroscopic method to differentiate geometric Z and E isomers of unsaturated compounds. A direct-deposition Fourier transform infrared spectrometer (FTIR), coupled to a gas chromatograph, was used successfully to analyze with a high sensitivity traces of C18:1 fatty acid methyl ester (FAME) isomers. It could also conclusively distinguish between isomers of conjugated diunsaturated FAME. The achievable sensitivity of this direct-deposition device makes possible accurate FAME mixture analyses that are not currently attainable with the more conventional light-pipe interface.

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Authors and Affiliations

  1. Laboratoire de Recherches sur les Arômes, INRA, 17 rue Sully BV 1540, 21034, Dijoncedex, France

    E. Sémon & J. L. Le Quéré

  2. IBEAS URA CNRS 1298 and SAVIT, Université F. Rabelais, 37200, Tours, France

    S. Ferary & J. Auger

Authors
  1. E. Sémon
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  2. S. Ferary
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  3. J. Auger
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  4. J. L. Le Quéré
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Correspondence to E. Sémon.

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Sémon, E., Ferary, S., Auger, J. et al. Gas chromatography-fourier transform infrared spectrometry of fatty acids: New applications with a direct deposition interface. J Amer Oil Chem Soc 75, 101–105 (1998). https://doi.org/10.1007/s11746-998-0018-7

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  • DOI: https://doi.org/10.1007/s11746-998-0018-7

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