Review Article
Protonation Equilibria of Biologically Active Ligands in Mixed Aqueous Organic Solvents
Table 4
Protonation constants of some α-amino acids in water and water-ethanol mixtures Temp. = 25°C and mol·dm−3 NaClO4a.
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Note. E: ethanol, W: water, Val = L-valine, Ala = L-alanine, Leu = L-leucine, Ile = L-isoleucine, Phe = L-phenylalanine, Ser = L-serine, and Thr = L-threonine; adata taken from reference [49]. corresponds to 11 species (i.e., L− + H+ LH); corresponds to 12 species (i.e., LH + H+). The % is expressed as (volume/Volume). |