Improved Resolution of Benzene, Other Aromatics and Oxygenates in Reformulated Gasoline Using a One-Column Approach
Oct 19 2021
The amount of benzene in gasoline is a concern. The challenge with the analysis lies in the complex composition of gasoline. Reformulated gasoline also contains additives like “Oxygenates” to produce more complete combustion and subsequent lower emissions of harmful compounds. Ethanol is a commonly used oxygenate. Therefore, to measure benzene in reformulated gasoline, it must be resolved from the aliphatic hydrocarbons, other aromatics, ethanol, plus any other oxygenates. This typically requires the use of a two-column switching procedure (see ASTM D3606). With the SLB®-ILD3606 capillary gas chromatography (GC) column the determination of benzene (and other aromatics) and oxygenates in gasoline can be accomplished on one column.
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