Advantages And Disadvantages Of A Chromatographic/FT-IR Interface Based On Mobile Phase Elimination

Kelly L. Norton; Andrew M. Haefner; Hideo Makishima; Peter R. Griffiths

doi:10.1117/12.969546

1 December 1989 Advantages And Disadvantages Of A Chromatographic/FT-IR Interface Based On Mobile Phase Elimination

Kelly L. Norton, Andrew M. Haefner, Hideo Makishima, Peter R. Griffiths

Proceedings Volume 1145, 7th Intl Conf on Fourier Transform Spectroscopy; (1989) https://doi.org/10.1117/12.969546
Event: Seventh International Conference on Fourier and Computerized Infrared Spectroscopy, 1989, Fairfax, VA, United States

Abstract

Interfaces between chromatographs and FT-IR spectrometers based on mobile phase elimination and eluite deposition are usually more sensitive than flow cell methods. In the GC/FT-IR 1,2 and SFC/FT-IR314 interfaces developed by our group, the eluites are deposited in a small area (<0.04 mm2) on a moving infrared transparent window (usually ZnSe) and their spectra are measured using an FT-IR microscope. One advantage that has been ascribed to this technique is the ability to use standard condensed phase spectral libraries for spectral searching.5 In this paper, the results of a systematic study are described in which SFC/FT-IR spectra are compared to libraries of condensed phase reference spectra. The particular analytes that were investigated were chosen to probe several possible sources of variation between SFC/FT-IR spectra and reference spectra of the same compounds prepared as KBr disks.

Citation Download Citation

Kelly L. Norton, Andrew M. Haefner, Hideo Makishima, and Peter R. Griffiths "Advantages And Disadvantages Of A Chromatographic/FT-IR Interface Based On Mobile Phase Elimination", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); https://doi.org/10.1117/12.969546

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