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- W2081870762 abstract "Abstract The present work describes a novel method for the isolation of the neutral N-containing fraction from crude oil using column liquid chromatography on silica gel chemically modified with Ti(IV) oxide using a grafting method. The crude oil sample is introduced onto the column and eluted with a proper sequence of eluents. The first eluted fraction contains only hydrocarbons. The N-containing compounds are eluted in a isolated fraction. Both fractions are collected, concentrated and analyzed using HRGC with NPD detection. The method is shown to be very selective for the isolation of the neutral N-containing fractions from crude oil." @default.
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- W2081870762 title "CHROMATOGRAPHIC ISOLATION OF NITROGEN-CONTAINING COMPOUNDS IN LIQUID FUELS 1 Ti(IV) OXIDE GRAFTED ONTO SILICA AS STATIONARY PHASE" @default.
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- W2081870762 doi "https://doi.org/10.1080/08843759408916190" @default.
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