reduced adsorption

https://doi.org/10.1351/goldbook.R05212
Of component i, defined by the equation Γi(n)=ΓiσΓi ciαciβcαcβ where Γσ, cα and cβ are, respectively, the total
Gibbs surface
concentration and the total concentrations in the bulk phases α and β: Γσ=iΓiσ cα=iciα cβ=iciβ The reduced adsorption is invariant to the location of the
Gibbs surface
. Alternatively, the reduced adsorption may be regarded as the
Gibbs surface
concentration of i when the
Gibbs surface
is chosen so that Γσ is zero, i.e. the
Gibbs surface
is chosen so that the reference system has not only the same volume, but also contains the same total
amount of substance
(n) as the real system.
Source:
PAC, 1972, 31, 577. (Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry) on page 591 [Terms] [Paper]