Abstract

In order to obtain more information on the structural entities bonded to the macromolecular structure of Monterey kerogen, the solvent-extractable acidic products obtained by mild alkaline hydrolysis were investigated by gas chromatography and combined gas chromatography-mass spectrometry analysis. On the basis of the results obtained, the previously proposed structural feature of Monterey kerogen is expanded to include saturated normal monocarboxylic acids (C 8 -C 36 ), saturated normal α,ω-dicarboxylic acids (C 7 -C 29 ), isoprenoid acids (C 14 -C 17 , C 19 -C 21 ), iso and anteiso acids (C 11 -C 18 ), unsaturated acids (C 16:1 , C 18:1 ), aromatic acids, hopanoid acids, and 3-carboxycholestane, as well as a complex mixture of alkylated thiophene carboxylic acids (C 6 -C 11 )

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