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Proceedings Paper

Advantages And Disadvantages Of A Chromatographic/FT-IR Interface Based On Mobile Phase Elimination
Author(s): Kelly L. Norton; Andrew M. Haefner; Hideo Makishima; Peter R. Griffiths
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Paper 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.

Paper Details

Date Published: 1 December 1989
PDF: 2 pages
Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); doi: 10.1117/12.969546
Show Author Affiliations
Kelly L. Norton, University of California Riverside (United States)
Andrew M. Haefner, University of California Riverside (United States)
Hideo Makishima, University of California Riverside (United States)
Peter R. Griffiths, University of California Riverside (United States)


Published in SPIE Proceedings Vol. 1145:
7th Intl Conf on Fourier Transform Spectroscopy

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