Comparison of Automotive Gasolines Using Capillary Gas Chromatography I: Comparison Methodology

    Volume 32, Issue 3 (May 1987)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 10


    Mann, DC
    Criminalist, Washington State Patrol Crime Laboratory, Seattle, WA

    (Received 25 April 1986; accepted 16 July 1986)

    Abstract

    Capillary gas chromatography was usd to compare the relative concentrations of hydrocarbons in a variety of gasoline samples. It was found that most of the discriminating information is contained in the fraction with a volatility ranging from approximately n-pentane to n-octane. Using the described comparison method, all gasoline samples collected at random were easily distinguished. Gasolines with identical histories (from the same distributor and same lot), once added to a gasoline station residual, were also distinguishable, although not as readily as those samples obtained at random.


    Paper ID: JFS12365J

    DOI: 10.1520/JFS12365J

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    Author
    Title Comparison of Automotive Gasolines Using Capillary Gas Chromatography I: Comparison Methodology
    Symposium , 0000-00-00
    Committee E30