Fig. 4
From: Impacts of hydrous manganese oxide on the retention and lability of dissolved organic matter
ATR-FTIR spectra of DOM–HMO and DOM–goethite sorption complexes in comparison with that of the unreacted DOM. The DOM–HMO and DOM–goethite sorption complexes result from initial C:metal molar ratios of 3.1 and have comparable C loadings (59.6 ± 7.1 mg C g−1 and 56.8 ± 1.0 mg C g−1, respectively)