Fig. 4. Stacked S K-edge (2472 eV) XANES spectra for humic substances extracted from clay (<2 µm) and silt size (2–20 µm) separates of soils from Wushwush, Ethiopia.
Fig. 4. Stacked S K-edge (2472 eV) XANES spectra for humic substances extracted from clay (<2 µm) and silt size (2–20 µm) separates of soils from Wushwush, Ethiopia.