INFRARED SPECTROMETRIC AND GAS CHROMATOGRAPHIC IDENTIFICATIONS OF ORGANIC SOLVENTS IN COMMERCIAL MATERIALS USED IN INDUSTRY FOR ESTIMATION OF TOXIC SUBSTANCES

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Identification of composition of organic solvents is very important for evaluation of industrial environment. Gas chromatographic and infrared spectrometric analyses are suitable to identify organic solvents in commercial materials. The volatile com-ponents in the solvents have been identified by gas chromatography. The identifica-tion is certified by infrared spectrometric analysis of gas chromatographic eluates. In some cases analysis by only gas chromatograph gives an erroneous result and it is generally desirable to identify each component eluted from chromatographic column by infrared spectrometry. These examples are illustrated by using commercial ma-terials including several solvents ATR method also is useful to infer the possible kinds of solvents used from the knowledge on non volatile substances in the materials.