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AEX Separations of Isolated Fractions from Ab-A Force-Oxidized. The two basic peaks, as well as the main peak fraction from semi-preparative AEX of force-oxidized Ab-A were collected, pooled, and concentrated by UF. The purity of the fractionated material as assessed by analytical AEX indicated the samples to be suitable for further characterization by peptide mapping (Figure 4), DSC (Figure 5), and ELISA analysis (Figure 6).
