1992 Volume 41 Issue 6 Pages 295-301
An empirical formula for the secondary adsorption phenomena was derived based on the following assumptions: the primary adsorption of potential-determining ion obeys the Freundlich adsorption isotherm and the secondary adsorption of ion in question follows the Freundlich type equation relating to the concentration of that ion in the solution and the amounts of potential-determining ions on the adsorbent. The utility of this equation was judged by a significance test, that is, F-test for data relating to the secondary adsorption of thorium-B on silver halides and thallium (I) iodide. All calculated F-values exceeded the critical values of F for a one-tailed test (P=0.01) . In other words, the secondary adsorption phenomena obeyed well the proposed equation.
