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Sedimentation equilibrium studies of PbA (12–20 mg/mL) in A5N. Experiments were performed at 3000 rpm and 20°C using interference detection. The data could be described well by the single ideal species model for the entire PbA concentration examined (20 mg/mL—Panel A, 12 mg/mL—Panel B). The molecular weight from individual fits (single, ideal) and from the global single ideal and nonideal species fits are presented in Panel C.
