Effect of porous structure of coal on propylene adsorption from gas mixtures.

Sci Rep · 2020 · PMC7347630 · PMID 32647300

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may be significantno p-value reported

The long retention time and high sorption of propylene on coal may be significant for the detection of endogenous fire on the basis of the concentration of this hydrocarbon.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.