(pKa) Compare with acid dissociation constant. The pKa of an acid is minus the base-10 log of its acid dissociation constant, pKa = - log Ka. For example, a pKa of 5 is equivalent to an acid dissociation constant of 10-5.
PKA, pKa, or other similar variations may stand for: ...[irradiation] A Primary Knock-on Atom or PKA is an atom, which is displaced from its lattice site by irradiation; it is, by definition, the first atom that an incident particle encounters in the target. After it is displaced from its initial lattice site, the PKA can induce the subsequent lattice site displacements of other atoms if it poss...
See association constant.
Type: Abbreviation Definitions: 1. The negative decadic logarithm of the ionization constant (Ka) of an acid; equal to the pH value at which equal concentrations of the acid and conjugate base forms of a substance (often a buffer) are present.
Protein kinase A