title: Highly selective iodide membrane electrode based on a cerium salen.
abstract: A highly selective PVC membrane electrode based on a cerium-salen complex was prepared. The sensor displays an anti-Hofmeister selectivity sequence with a preference for iodide ion over many common organic and inorganic anions. The proposed electrode exhibits a near-Nernstian behavior over a wide concentration range (5.0 x 10(-2) - 8.0 x 10(-6) M) with a slope of 57.5 mV per decade, and a detection limit of 6.0 x 10(-6) M. The electrode has a very fast response time and can be used in the pH range of 3.0 - 1 1.0. It was applied, as an indicator electrode, in potentiometric titration of Ag+ ions.
authors.affiliation: Department of Chemistry, Tehran University, Iran. Ganjali@khayam.ut.ac.ir
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ganjali
authors.forename: Tahereh
authors.initials: T
authors.lastname: Poursaberi
authors.forename: Morteza
authors.initials: M
authors.lastname: Hosseini
authors.forename: Masoud
authors.initials: M
authors.lastname: Salavati-Niasary
authors.forename: Mohammad
authors.initials: M
authors.lastname: Yousefi
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Shamsipur