title: Construction of a new Cu2+ coated wire ion selective electrode based on 2-((2-(2-(2-(2-hydroxy-5-methoxybenzylidene amino)phenyl)disufanyl)phenylimino)methyl)-4-methoxyphenol Schiff base.
abstract: In this article a new coated platinum Cu(2+) ion selective electrode based on 2-((2-(2-(2-(2-hydroxy-5-methoxybenzylideneamino)phenyl)disufanyl)phenylimino) methyl)-4-methoxyphenol Schiff base (L(1)) as a new ionophore is described. This sensor has a wide linear range of concentration (1.2 × 10(-7)-1.0 × 10(-1) mol L(-1)) and a low detection limit of 9.8 × 10(-8) mol L(-1)of Cu(NO(3))(2). It has a Nernstian response with slope of 29.54 ± 1.62 mV decade(-1) and it is applicable in the pH range of 4.0-6.0 without any divergence in potential. The coated electrode has a short response time of approximately 9s and is stable at least for 3.5 months. The electrode shows a good selectivity for Cu(2+) ion toward a wide variety of metal ions. The proposed sensor was successfully applied for the determination of Cu(2+) ion in different real and environmental samples and as indicator electrode for potentiometric titration of Cu(2+) ion with EDTA.
authors.affiliation: Department of Chemistry, Yasouj University, Yasouj, Iran. ashokrollahi@mail.yu.ac.ir
authors.forename: A
authors.initials: A
authors.lastname: Shokrollahi
authors.forename: A
authors.initials: A
authors.lastname: Abbaspour
authors.forename: M
authors.initials: M
authors.lastname: Ghaedi
authors.forename: A Naghashian
authors.initials: AN
authors.lastname: Haghighi
authors.forename: A H
authors.initials: AH
authors.lastname: Kianfar
authors.forename: M
authors.initials: M
authors.lastname: Ranjbar
mesh_terms: D001593:Benzyl Compounds / Q000737:chemistry*; D003069:Coffee / Q000737:chemistry; D003300:Copper / Q000032:analysis / Q000737:chemistry*; D004566:Electrodes; D006863:Hydrogen-Ion Concentration; D057230:Limit of Detection; D008567:Membranes, Artificial; D008900:Mineral Waters / Q000032:analysis; D010984:Platinum / Q000737:chemistry; D011143:Polyvinyl Chloride / Q000737:chemistry; D011199:Potentiometry; D015203:Reproducibility of Results; D045483:Rivers / Q000737:chemistry; D012545:Schiff Bases / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: C558422:2-((2-(2-(2-(2-hydroxy-5-methoxybenzylidene amino)phenyl)disufanyl)phenylimino)methyl)-4-methoxyphenol; D001593:Benzyl Compounds; D003069:Coffee; D008567:Membranes, Artificial; D008900:Mineral Waters; D012545:Schiff Bases; D012997:Solvents; D014867:Water; D010984:Platinum; D003300:Copper; D011143:Polyvinyl Chloride