Fuel · 1979 · 30 citations · 7 references
Natural SciencesChemical EngineeringChemistryAnalytical ChemistryMass Spectrometric AnalysisOrganic ChemistryChromatographyExtraction TechniquesInstrumental AnalysisSolvent ExtractionCoal Ash CompositionCoal ImpuritiesCoal Quality Analysis
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Chromatographic separation and characterization of coal-derived asphaltenes
I. Schwager, Teh Fu Yen · Fuel · 1979 · 37 citations