Fig. 8From: Review of interactions between phosphorus and arsenic in soils from four case studies(Adapted from Strawn et al. [48])X-ray absorption near edge structure (XANES) spectra of As K-edge from samples incubated with and without biochar in greenhouse soils and field soils (unamended). K-edge XANES spectra for sodium arsenate (As(V)) and sodium arsenite (As(III)) standards are also included as oxidation state edge-energy referencesBack to article page