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- W2020246369 abstract "Abstract Organic materials extracted from a UK high volatile bituminous coal, its solvent extracted O-alkylation product and its solvent extracted O-alkylated, LiAlH4 reduction product have been analysed using g.c.-m.s. to determine changes in the distributions of extractable components with increasing extent of solubilization. Changes in the distribution of functional groups in the insoluble residues have been followed after each step using FT-i.r. Although the range of compounds released at each step is similar, the distribution of extractable lipid classes and their individual components varies. Hopanes (αβ and βα), acyclic isoprenoids, n-alkanes and alkyl phenanthrenes are present in all extracts, with n-alkanes predominating. Maturity parameters based on hopane, phenanthrene and n-alkane distributions give conflicting results for the relative maturities of the three extracts, possibly due to the differential association of individual components within the coal matrix. The organic components extracted after O-alkylation and after LiAlH4 reduction are likely to arise from the release of physically trapped material as a consequence of cleavage of specific bonds within the coal macromolecular structure." @default.
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- W2020246369 date "1988-04-01" @default.
- W2020246369 modified "2023-09-26" @default.
- W2020246369 title "Stepwise chemical degradations of a UK bituminous coal" @default.
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- W2020246369 doi "https://doi.org/10.1016/0016-2361(88)90354-7" @default.
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