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Similarity of Salt Influences on the pH of Buffers, Polyelectrolytes, and Proteins

Voinescu, Alina E; Bauduin, Pierre; Pinna, M Cristina; Touraud, Didier; Ninham, Barry; Kunz, Werner


Changes in pH induced by the addition of electrolytes to buffers, polyelectrolytes (a polycarboxy polymethylene and a polyethyleneimine), and proteins (casein, whey, and lysozyme) solutions are explored systematically. The two buffer systems are triethanolamine/triethanolammonium chloride and citric acid/sodium citrate. These are chosen because of the similarity of their acid-base equilibria with those of amino acids predominant in most proteins, that is, amino acids that include carboxylate or...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Journal of Physical Chemistry B
DOI: 10.1021/jp0600209


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