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Determination of High-Molecular-Weight n-Alkanes of Petroleum Origin by High-Temperature Gas Chromatography

Institute of Organic Chemistry and Biochemistry
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This paper deals with the identification and determination of high-molecular-weight n-alkanes of petroleum origin using high-temperature gas chromatography (HTGC). Analysed samples, which were the concentrates of saturated hydrocarbons, differed in both the total content of n-alkanes and their distribution. They were analysed on various types of HTGC columns differing in length and inner diameter. While the determined total content of n-alkanes was comparable for all the chromatographic columns, differences were found in the efficiency of separation of n-alkanes over C40 as well as in their quantitative elution.

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