GAS CHROMATOGRAPHY INFRARED MATRIX-ISOLATION SPECTROMETRY

A novel analytical technique for the identification of compounds separated by a gas chromatograph has been demonstrated. The compounds are collected individually in matrices of condensed inert gas using an apparatus of unique design. The matrices are examined using an infrared spectrometer. Under appropriate collection conditions, each matrix contains sample molecules fully isolated from one another by inert gas atoms. The infrared spectra show sharp bands characteristic of the individual vibrational transitions of the matrix-isolated sample molecules. Practical application of the technique is demonstrated by separating a mixture of chlorinated phenols and collecting the components individually under matrix-isolation conditions. © 1979, American Chemical Society. All rights reserved.