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Design considerations for pulsed-flow comprehensive two-dimensional GC: Dynamic flow model approach
Citation
Harvey, PM and Shellie, RA and Haddad, PR, Design considerations for pulsed-flow comprehensive two-dimensional GC: Dynamic flow model approach, Journal of Chromatographic Science, 48, (4) pp. 245-250. ISSN 0021-9665 (2010) [Refereed Article]
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Copyright Statement
Copyright © 2010 Preston Publications
Official URL: http://www.prestonpub.com/
DOI: doi:10.1093/chromsci/48.4.245
Abstract
A dynamic flow model, which maps carrier gas pressures and carrier gas flow rates through the first dimension separation column, the modulator sample loop, and the second dimension separation column(s) in a pulsed-flow modulation comprehensive two-dimensional gas chromatography (PFM-GC×GC) system is described. The dynamic flow model assists design of a PFM-GC×GC modulator and leads to rapid determination of pneumatic conditions, timing parameters, and the dimensions of the separation columns and connecting tubing used to construct the PFM-GC×GC system. Three significant innovations are introduced in this manuscript, which were all uncovered by using the dynamic flow model. A symmetric flow path modulator improves baseline stability, appropriate selection of the flow restrictors in the first dimension column assembly provides a generally more stable and robust system, and these restrictors increase the modulation period flexibility of the PFM-GC×GC system. The flexibility of a PFM-GC×GC system resulting from these innovations is illustrated using the same modulation interface to analyze Special Antarctic Blend (SAB) diesel using 3 s and 9 s modulation periods.
Item Details
Item Type: | Refereed Article |
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Research Division: | Chemical Sciences |
Research Group: | Analytical chemistry |
Research Field: | Separation science |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the chemical sciences |
UTAS Author: | Harvey, PM (Mr Paul Harvey) |
UTAS Author: | Shellie, RA (Associate Professor Robert Shellie) |
UTAS Author: | Haddad, PR (Professor Paul Haddad) |
ID Code: | 63186 |
Year Published: | 2010 |
Funding Support: | Australian Research Council (DP0771893) |
Web of Science® Times Cited: | 12 |
Deposited By: | Austn Centre for Research in Separation Science |
Deposited On: | 2010-04-19 |
Last Modified: | 2015-01-28 |
Downloads: | 0 |
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