GC Determination of Benzene in Reformulated Gasoline using a Supelco SLB-IL111 Ionic Liquid Column

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Courtesy of Sigma-Aldrich Co., LLC

The amount of benzene in gasoline is a concern because it is a known human carcinogen, and exposure to it has been linked to detrimental health effects.  The challenge with the analysis lies in the complex composition of gasoline, which consists of hundreds of different compounds.  This application shows the separation of benzene and other gasoline compounds using a 60 m x 0.25 mm I.D., 0.20 μm Supelco® SLB®-IL111 ionic liquid column. Analysis of a reformulated gasoline sample on the extremely polar SLB-IL111 capillary column resulted in the elution of benzene after the aliphatic portion, and also resolution of benzene and ethanol.

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