Abstract
A short introduction to the notation of microscopic and macroscopic acidity constants of amino acids is given. The historical pathways are discussed, which led to the contemporary understanding of the acid base reactions of amino acids and their zwitterionic nature in solutions at the isoelectric point. This text is for undergraduate studies of analytical chemistry and biochemistry.
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13 March 2019
We regret the misprint of two chemical equations in the original article.
Notes
Zwitter‘is German for hermaphrodite.
Terrell Leslie Hill (Oakland, USA, Dec 19, 1917–Eugene, USA, Jan. 23, 2014) was a theoretical physicist, physical chemist and chemical biologist.
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Scholz, F., Kahlert, H. Acid–base equilibria of amino acids: microscopic and macroscopic acidity constants. ChemTexts 4, 6 (2018). https://doi.org/10.1007/s40828-018-0060-5
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DOI: https://doi.org/10.1007/s40828-018-0060-5