| Autor: |
Frysinger, Glenn S., Gaines, Richard B., Ledford, Edward B. |
| Zdroj: |
Journal of High Resolution Chromatography (now called Journal of Separation Science); April 1999, Vol. 22 Issue: 4 p195-200, 6p |
| Abstrakt: |
Comprehensive two‐dimensional gas chromatography (GC×GC) has been applied to the quantitative analysis of benzene, toluene, ethylbenzene, xylenes (BTEX), and all heavier aromatic compounds in gasoline. The two‐dimensional chromatographic separation used volatility selection on the first‐dimension column and polarity selection on the second‐dimension column. In the resulting GC×GC chromatogram, aromatic species were resolved from other compound classes. Moreover, structurally related aromatics were grouped in a manner that facilitated identification and integration. The response of a flame ionization detector to each major aromatic group in gasoline was calibrated using internal standards. Quantitation produced results directly comparable with ASTM standard methods. The present GC×GC method can be expanded to analyze other gasoline components. |
| Databáze: |
Supplemental Index |
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