Dual capillary gas chromatographic analysis of alcohols and methyl tert-butyl ether in gasolines

Authors

  • J. M. Levy,

    Corresponding author
    1. The Standard Oil Company, Corporate Research Center, 4440 Warrensville Center Road, Cleveland, Ohio 44 128, USA
    • The Standard Oil Company, Corporate Research Center, 4440 Warrensville Center Road, Cleveland, Ohio 44 128, USA
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  • J. A. Yancey

    1. The Standard Oil Company, Corporate Research Center, 4440 Warrensville Center Road, Cleveland, Ohio 44 128, USA
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Abstract

A gas chromatographic method has been developed for the identification and direct determination of alcohols and methyl tert-butyl ether (MTBE) in gasolines. The technique involves simultaneous injection of the gasoline without any sample preparation onto two fused silica capillary columns of differing polarities. The method permits simultaneous determinations of methanol, ethanol, 2-propanol, tert-butanol, 1-propanol, sec-butanol, 1-butanol, and MTBE. By using an automatic sampler in combination with electronic pressure programming and BASIC programming, the determinations were performed automatically and reproducibly with a relatively short analysis time.

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