title: Effect of ionic strength on the formal potential of the glass electrode in various saline media.
abstract: We examined the variation with ionic strength (I, adjusted with KCl, KNO(3), KBr, NaCl or NaClO(4)) of the formal potential (E(const)) for glass electrodes exhibiting a Nernstian response (i.e. E(cell)=E(const)-slog[H(+)]). For this purpose, we investigated the different factors included in the formal potential, so we obtained reported values for the liquid junction potential as a function of ionic strength and determined the logarithm of the activity coefficient for the proton in various saline media, using Pitzer equations.
authors.affiliation: Departamento de Quimica Fundamental e Industrial, Facultad de Ciencias, Universidad de La Coruña, Campus da Zapateira s/n, E-15701 La Coruña, Spain.
authors.forename: I
authors.initials: I
authors.lastname: Brandariz
authors.forename: T
authors.initials: T
authors.lastname: Vilariño
authors.forename: P
authors.initials: P
authors.lastname: Alonso
authors.forename: R
authors.initials: R
authors.lastname: Herrero
authors.forename: S
authors.initials: S
authors.lastname: Fiol
authors.forename: M E
authors.initials: ME
authors.lastname: Sastre de Vicente