Abstract

Packed-column supercritical fluid chromatography with a mobilephase gradient of carbon dioxide and methanol has been performed on a mixture of eight sulfonamides. The analytes were detected and identified with Fourier transform infrared spectrometry. A commercial mobile-phase elimination interface (LC-Transform ) was employed. A fixed-integral restrictor afforded the decompression zone between the column and germanium disk where the analytes were deposited. Excellent-quality infrared spectra were obtained for all eight separated analytes.

Recent applications of FT-IR spectroscopy to polymer systems

J. L. Koenig and M. K. Antoon
Appl. Opt. 17(9) 1374-1385 (1978)

Remote and cross-stack measurement of stack gas concentrations using a mobile FT-IR system

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Appl. Opt. 21(4) 635-641 (1982)

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Reflective one-to-multi-polarization conversion via separate control of phase and magnitude

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Enhancing signal detection and completely eliminating scattering using quasi-phase-cycling in 2D IR experiments

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