The isolation and identification of gamma-lactones in the acidic fraction in Aleksinac (Yugoslavia) shale bitumen |
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| Authors: | HS Hertz BD Andresen MV Djujricic K Biemann M Saban D Vitorovic |
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| Institution: | 2. Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A.;1. Faculty of Agriculture, University of Belgrade, Belgrade, Yugoslavia |
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| Abstract: | Gas chromatography-mass spectrometry-computer assisted analysis of the acidic fraction of Miocene Aleksinac shale bitumen (26 million years old) has shown a great variety of organic compounds. Samples obtained from both benzene and benzene-methanol extracts were investigated and found to contain a homologous series of γ-lactones (C7-C15). These lactones possibly represent the only indication of unsaturated acids present during the shales deposition. In addition to the γ-lactones, straight chain aliphatic monocarboxylic acids (C6-C12), dicarboxylie acids (C6-C19), as well as many aromatic acids have been detected. |
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