Dixon H B
Biochem J. 1979 Jan 1;177(1):249-50. doi: 10.1042/bj1770249.
If the titration pK values of a dibasic acid are called pK +/- logp, then its molecular pK values are pK +/- log(p+1/p). If the pH values at which the concentration of its monoprotonated form is half-maximal are called pK +/- logq, then its molecular pK values are pK +/- log(q-4+1/q).
如果二元酸的滴定pK值称为pK±logp,那么其分子pK值为pK±log(p + 1/p)。如果其单质子化形式浓度达到最大值一半时的pH值称为pK±logq,那么其分子pK值为pK±log(q - 4 + 1/q)。