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•Two organic fluorines were identified in a Chinese anthracite using mass spectrometry.•Fingerprint of heteroatom-containing compounds was characterized.•Higher polarity of acetone at supercritical state may induce a higher degree of decomposition of the anthracite.
A high-temperature coal tar (HTCT) was extracted by petroleum ether (PE) and the extract (denoted by PE-HTCT) was characterized using three mass spectrometers to obtain and compare molecular compositional information. Gas chromatography/mass spectrometry detected molecules with low molecular weight and polarity such as hydrocarbons. A time-of-flight MS coupled with an atmospheric solids analysis probe...
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