Abstract
This paper describes the development of a multidimensional gas chromatographic method for the analysis of environmentally interesting samples. In this study, sequential heartcutting across the entire chromatogram of two different paint or lacquer thinner samples was performed. Identification of mixture components was carried out using either computer spectral library search methods or by examination of the infrared and mass spectral data obtained from the analysis. After analyzing the heartcuts, it was determined that the number of identifiable components had increased from 12 to 60 for one thinner sample and from about 60 to 100 peaks for the other sample. These results demonstrate the analytical power of combining multidimensional gas chromatographic separation methods with the qualitative analysis capability of a modern infrared-mass spectral detection system. Some of the difficulties encountered in the present application of multidimensional gas chromatography are discussed.
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