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Figure 9
Comparison of photo-reduction at various synchrotron sources in V K-edge XAS of freeze-dried biological samples: first and second X-ray absorption near-edge scans for V(V/IV) species in biological media (neat freeze-dried samples, 295 K). The reaction products of Na3[VO4] (1.0 mM) with undiluted calf serum or with BSA solution (0.50 mM in HEPES-buffered saline, pH 7.4) were prepared as described in §2 ![]() |