The application of Eq. 1 offers significant advantages due to its simplicity of implementation. However, the preceding sections emphasize the importance of employing Eq. 2 in various scenarios. It is important to note that the application of this formalism is constrained by the availability of experimental data for partitioning of ionic species and simulations that ensure adequate accuracy. This led us to propose a model that will help as a guide to discern cases in which the simplified model represented in Eq. 1 can be used, or the consideration of the apparent ionic partition is mandatory, as in Eq.2.