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Graph depicting the changes in total light scattering for samples at pH 4. Inset graph represents the application of a second derivative function that determined the discontinuity in the slope of the derived count rate data. Critical aggregation concentration (CAC) values for each test system are displayed in the table. ∗p < 0.05 represents significant difference between CAC results (Tukey’s Honestly Significant Difference test). Each point represents mean ± standard deviation (n = 3).
