S. Fiol et al., PROTONATION CONSTANTS OF VALINE, SERINE, AND BETA-ALANINE IN ARTIFICIAL SEAWATER AT 25-DEGREES-C, Journal of chemical and engineering data, 43(3), 1998, pp. 393-395
The protonation constants of some amino acids commonly found in natura
l waters, namely valine, (CH3)(2)CHCH2CH(NH2)COOH; serine, OHCH2CH(NH2
)COOH; and beta-alanine, NH2CH2CH2COOH, have been studied at different
ionic strength of artificial seawater and at 25 degrees C by potentio
metry with a commercial glass electrode. The results have been interpr
eted by the Fitter interaction model.