Determination of Trace Hydrocarbon Impurities in High Purity Chemicals from Petroleum by Gas Chromatography

    Published: Jan 1965

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    Gas chromatography, using packed columns and hydrogen flame-ionization detection, is used to identify and determine trace impurities in many high purity petrochemicals, such as benzene, cyclohexane, methyl cyclohexane, toluene, ethylbenzene, isopropylbenzene, styrene, -methylstyrene and propylene. Impurities in concentrations as low as 0.5 ppm may be detected. Using reproducible and equal volume injections, quantitative results are determined by comparing the detector response obtained for known levels of some impurity in a properly prepared standard blend with the detector response obtained for the impurities in a comparable sample.


    gas Chromatography, flame-ionization detection, petrochemicals, impurities, hydrocarbons, benzene, cyclohexane, methyl-cyclohexane, ethylbenzene, isopropylbenzene, styrene, alpha, -methyl-styrene, propylene, chemical analysis

    Author Information:

    Klett, R. A.
    Head and Chemist, Universal Oil Products Co., Des Plaines, Ill.

    Korous, L. R.
    Head and Chemist, Universal Oil Products Co., Des Plaines, Ill.

    Paper ID: STP47152S

    Committee/Subcommittee: D02.04

    DOI: 10.1520/STP47152S

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