found: Work cat.: 2009012179: Surface charging and points of zero charge, 2009:ECIP pref. (PZC) galley (PZC is defined as the conditions, at which the surface charge density equals zero, and for metal oxides and related materials it is determined by potentiometric titration or by related methods as the point, at which the apparent surface charge density determined in the presence of inert electrolyte is independent of the ionic strength)
found: IUPAC gold book.
found: Wikipedia, Mar. 27, 2009(Points of zero charge; The point of zero charge (pzc), in physical chemistry, is a concept relating to the phenomenon of adsorption, and it describes the condition when the electrical charge density on a surface is zero)
found: OneMine.org site, April 2009(Zero charge points)
