Dissolved organic matter sorption on sub soils and minerals studied by ¹³ C-NMR and DRIFT spectroscopy

Summary Sorption on the mineral matrix is an important process restricting the movement of dissolved organic matter (DOM) in soils. In this study, we aimed to identify the chemical structures responsible for the retention of DOM by sorption experiments with total DOM and acidic humic substances (AHS), containing humic and fulvic acids, on soil samples and minerals (goethite, ferrihydrite, and amorphous Al(OH) 3 ). The AHS remaining in solution...