Evaluation of humic acid fractions by fluorimetry and 13C NMR spectroscopy

Aromatization of organic matter induced by the presence of clays during flash pyrolysis-gas chromatography–mass spectrometry (PyGC–MS)

“….) [3][4][5][6][7] and (iii) molecular analyses. More generally, a combination of these complementary analytical approaches is applied because of the very high complexity of macromolecular organic matter.…”