Application of microscale-preparative multidimensional gas chromatography with nuclear magnetic resonance spectroscopy for identification of pure methylnaphthalenes from crude oils

Eyres, G, Urban, S, Morrison, P and Marriott, P 2008, 'Application of microscale-preparative multidimensional gas chromatography with nuclear magnetic resonance spectroscopy for identification of pure methylnaphthalenes from crude oils', Journal of Chromatography A, vol. 1215, no. 12, pp. 168-176.


Document type: Journal Article
Collection: Journal Articles

Title Application of microscale-preparative multidimensional gas chromatography with nuclear magnetic resonance spectroscopy for identification of pure methylnaphthalenes from crude oils
Author(s) Eyres, G
Urban, S
Morrison, P
Marriott, P
Year 2008
Journal name Journal of Chromatography A
Volume number 1215
Issue number 12
Start page 168
End page 176
Total pages 9
Publisher Elsevier BV
Abstract Mass spectrometry is often insufficient to distinguish between structural isomers, requiring confirmation using NMR spectroscopy. Here, a novel preparative technique based upon capillary multidimensional gas chromatography to isolate pure volatile components from complex samples is described. The method was developed through isolation of 1,4-dimethoxybenzene (5.2 μg, 10 injections) from a peppermint essential oil. Then isomers of 1- and 2-methylnaphthalene were isolated from a complex crude oil in sufficient amounts (3.1 μg, 38 injections and 5.0 μg, 35 injections) for discrimination using 1H NMR spectroscopy. This methodology is applicable to identify any volatile molecule in complex matrices requiring confirmation using NMR spectroscopy.
Subject Analytical Spectrometry
Keyword(s) multidimensional gas chromatography
preparative capillary gas chromatography
1H NMR spectroscopy
crude oil
petroleum
methylnapthalene isomers
dimethoxybenzene
essential oils
DOI - identifier 10.1016/j.chroma.2008.10.102
Copyright notice © 2008 Elsevier B.V. All rights reserved.
ISSN 0021-9673
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