2045202 EXAFS extended X-ray absorption fine structure 1688 2045203 EXAFS extended XAFS 18 2045199 EXAFS extended X-ray fine structure 6 2045204 EXAFS extended X-ray fine structure spectroscopy 3 2045210 EXAFS extended X-ray absorption fine structure measurements 2 2045209 EXAFS either horse spleen ferritin or the dextran complex 1 2045207 EXAFS elemental dot mapping and X-ray absorption fine structure spectroscopic 1 2045208 EXAFS esperanzaite significantly improved the match between XAS fine structure 1 2045205 EXAFS extended part of the spectra 1 2045200 EXAFS extended region of the XAS spectrum 1 2045201 EXAFS post-edge XANES and extended XAFS 1