surface excess concentration

https://doi.org/10.1351/goldbook.S06172
A quantity defined by \[\mathit{\Gamma}_{i} = \frac{n_{i}^{\sigma }}{A_{\rm{s}}}\] where \(n_{i}^{\sigma}\) is the surface excess (or adsorption) of component \(i\) and \(A_{\rm{s}}\) is the area of the dividing surface or interface.
Sources:
Green Book, 2nd ed., p. 63 [Terms] [Book]
PAC, 1986, 58, 967. (Reporting data on adsorption from solution at the solid/solution interface (Recommendations 1986)) on page 970 [Terms] [Paper]
Citation: 'surface excess concentration' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S06172 RIS BibTex EndNote
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