Fig. 3.
Extended Fujita method estimate of the molecular weight (expressed as molar mass, g/mol) distribution f(M) vs. M for alginate at a loading concentration of 0.03 mg/ml in 0.3 M NaCl. Transformation from a g(s) vs. s plot (inset) using a value for b of ∼0.33 (Harding et al. 2011) and κs = 0.0685, with the latter calculated from M w = 280,000 g/mol (from SEC-MALS) and s = s 20,w (at 0.03 mg/ml) = 4.3S. Estimates for M z/M w (the ratio of the z-average to the weight average molar mass) and M w/M n (the ratio of the weight average to the number average molar mass) are also given