Study of Constituents of Fractionated Extraction from Datong Coal

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Datong coal was extracted with CS2, n-hexane, benzene, methanol, acetone, tetrahydro-furan(THF) and THF/methanol(1:3,v/v) mixed solvent sequentially. The extracts were analyzed with GC/MS. It is presented that group seperation of soluble organic compounds
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