Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9748832 | Journal of Chromatography A | 2005 | 7 Pages |
Abstract
A comprehensive two-dimensional gas chromatography (GCÂ ÃÂ GC) instrument has been created by coupling a flow-switching modulator and a standard gas chromatograph. The instrument was used to characterize the aromatic composition of gasoline. The high-resolution separation produced by flow-switching GCÂ ÃÂ GC allowed gasoline aromatics to be fully resolved from saturated components. The aromatic compounds were further separated into groups having the same carbon number. A standard gasoline sample was analyzed to evaluate the quantitative accuracy and precision of this technique. The data show that flow-switching GCÂ ÃÂ GC produces results that are comparable to gas chromatography-mass spectrometry (GC-MS) and thermal modulation GCÂ ÃÂ GC. The simple, low-cost, and robust nature of flow-switching GCÂ ÃÂ GC makes it an ideal technique for the routine analysis of aromatic compounds in gasoline.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Nicole J. Micyus, James D. McCurry, John V. Seeley,