Yj. Seok et al., A SIMPLE SPECTROPHOTOMETRIC DETERMINATION OF DISSOCIATION-CONSTANTS OF ORGANIC-COMPOUNDS, Analytica chimica acta, 306(2-3), 1995, pp. 351-356
A simple and rapid method is introduced for the determination of disso
ciation constants of organic compounds by means of UV-visible spectrop
hotometry. It is applicable to the compounds whose concentrations or e
xtinction coefficients are not determined. It provides more exact diss
ociation constants than other methods, even for polyprotic compounds w
ith almost equal pK(a) values and compounds with extremely acidic or e
xtremely basic properties.