Terms sourced from: 10.1351/pac198658070967

"Reporting data on adsorption from solution at the solid/solution interface (Recommendations 1986)", Everett, D.H., Pure and Applied Chemistry 1986, 58(7), 967

excess volume (at a solid/liquid interface) excess mass (at a solid/liquid interface) surface excess \(n^{\sigma}\)surface excess concentration \(\mathit{\Gamma}\)