A geometrical surface chosen parallel to the
interface and used to define the volumes of the bulk phases in the calculation of the extent
of
adsorption, and of other
surface excess properties. Also referred to as Gibbs dividing surface.
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 588