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a) Changes as a function of pH in the distribution of different dissociation states of dissolved lysine, determined from reported dissociation constants.11c, 20 b) Influence of the pH value of the solution on the adsorption of lysine on activated carbon (Silcarbon CW20). T=30 °C, c Lys=30 g L−1, t ads=24 h. The error bars correspond to the standard deviation determined from triplicate experiments.
