Fig. 4
From: Origin of the unusually strong and selective binding of vanadium by polyamidoximes in seawater
EXAFS spectra and magnitude of the Fourier transform of small molecule standards, solution samples, and seawater-contacted adsorbents. Solid samples: a Na3VO4(s). b Na[VO2(HIDO)](cr). c Na[V(IDO)2](cr). Solution samples: d Na3VO4. e [VO2(IDO)]2−. f [V(IDO)2]−. Seawater-contacted adsorbents: g AF-1, h AI-8. All samples show the data as a solid black line and fit as a dotted red line
