Polychlorobiphenyls differentiation and identification by gas chromatography/fourier transform infrared spectroscopy |
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Authors: | Doumenq P Guiliano M Mille G |
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Institution: | Faculté des Sciences et Techniques de St Jér?me, Centre de Spectroscopie Moléculaire, URA 1409 CNRS, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 13, France. |
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Abstract: | Reference infrared vapour phase spectra of 20 polychlorobiphenyls (PCBs) have been obtained by gas chromatography/Fourier transform infrared spectroscopy (GC/FTIR). These spectra are consistent with those of PCB obtained by diffuse reflectance IR spectroscopy (DRIFT) and with those of more simple molecular structures (iodochlorobenzenes, 1-bromodichlorobenzenes). The IR frequencies of the GC/FTIR spectra of PCB are assigned in terms of substitution patterns. This work shows that GC/FTIR can be a good approach for differentiation and identification of PCB in complex mixtures. |
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