Sulfolane as a novel stationary phase for analytical separations by gas chromatography

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dc.contributor.authorDarko, Ernest
dc.contributor.authorThurbide, Kevin B.
dc.date.accessioned2021-11-16T20:19:38Z
dc.date.available2021-11-16T20:19:38Z
dc.date.issued2021-11-06
dc.description.abstractSulfolane is explored as a novel stationary phase for use in analytical separations by capillary column gas chromatography with flame ionization detection (GC-FID). Stainless steel capillaries were found to provide a good substrate for coating and retaining a sulfolane phase, whereas fused silica tubing did not perform well for this. In general, the phase was found to be stable for several hours of use when using elevated carrier gas pressures (90 psi) and a small restriction (25 μm I.D. tubing) at the outlet. This normally provided good performance at temperatures up to about 200 °C with very little background interference in the FID. Given its separation properties, a short 2 m × 100 μm I.D. column was found to be preferable for most separations in this study. Measurements indicated the coating procedure yielded a sulfolane film near 4 μm thick on this column, which produced 4400 plates for benzene with a sample capacity near 30 μg. The sulfolane phase yielded good retention and peak shape for many analytes including alkanes, aromatics, alcohols, bases, sulfides, phosphites, thiols, and others. Compared to longer conventional GC columns, the relatively short sulfolane column was found to offer improved selectivity in the separation of unsaturated, aromatic, and alkane test analytes. As such the method was successfully applied to the analysis of aromatics in gasoline headspace. Results suggest that sulfolane could be a potentially useful stationary phase to further explore in GC separations.en_US
dc.description.grantingagencyNatural Sciences and Engineering Research Council (NSERC)en_US
dc.identifier.citationDarko, E., & Thurbide, K. B. (2021). Sulfolane as a novel stationary phase for analytical separations by gas chromatography. Analytica Chimica Acta, 339254.en_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.aca.2021.339254en_US
dc.identifier.urihttp://hdl.handle.net/1880/114116
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.publisher.departmentChemistryen_US
dc.publisher.facultyScienceen_US
dc.publisher.hasversionacceptedVersionen_US
dc.publisher.institutionUniversity of Calgaryen_US
dc.publisher.policyhttps://www.elsevier.com/about/policies/sharingen_US
dc.rightsUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0en_US
dc.subjectGas chromatographyen_US
dc.subjectSeparationsen_US
dc.subjectSulfolaneen_US
dc.subjectStationary phaseen_US
dc.subjectSelectivityen_US
dc.titleSulfolane as a novel stationary phase for analytical separations by gas chromatographyen_US
dc.typejournal articleen_US
ucalgary.item.requestcopytrueen_US
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