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Chromatographic Determination of the Concentration of Organochlorine Compounds in Crude Oil and Petroleum Products

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Abstract

A chromatographic method for determining the mass fraction of organochlorine compounds in oil and its refined products has been developed. An inert gas is bubbled through a container filled with the analyzed liquid; the flow of the inert gas containing vapors of organochlorine compounds is divided into two parallel flows in the chromatograph; one of the two flows is separated with a capillary chromatographic column, while the other, with a polycapillary chromatographic column, both at a constant temperature. The organochlorine compounds are detected with a single electron-capture detector connected to each of the two flows in accordance with the release time of a definite organochlorine compound. The developed method allows automated measurements of mass fraction of organochlorine compounds in oil and its refined products using flow gas chromatographs of explosion-proof design; the analysis time decreases, and the losses due to contamination of feedstock with organochlorine compounds at oil refineries and oil transportation enterprises are reduced.

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Funding

Investigations on polycapillary columns in the paper section Chromatographic Metod for Determinetion of OCCs in Crude Oil and Refined Products were supported by the Russian Science Foundation (project no. 21-79-30029).The Section of Mass Fraction Determination of OCCs in Petroleum Products was supported by the Russian Science Foundation (project no. 22-11-00335).

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Correspondence to V. I. Bobkov.

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Translated by L. Smolina

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Meshalkin, V.P., Bobkov, V.I., Yakimenko, I.V. et al. Chromatographic Determination of the Concentration of Organochlorine Compounds in Crude Oil and Petroleum Products. Theor Found Chem Eng 56, 638–643 (2022). https://doi.org/10.1134/S004057952205030X

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  • DOI: https://doi.org/10.1134/S004057952205030X

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