title: A novel polyvinyl chloride-membrane optical sensor for the determination of Cu(2+) ion based on synthesized (N'(1)E,N'(2)E)-N'(1),N'(2)-bis(pyridine-2-ylmethylene)oxalohydrazide: experimental design and optimization.
abstract: A copper (Cu(2+)) ion-selective bulk optode was constructed by using (N'(1)E,N'(2)E)-N'(1),N'(2)-bis(pyridine-2-ylmethylene)oxalohydrazide as ionophore and NaTPB in DBP matrices. Central composite design under response surface methodology was applied for the optimization of variables including pH, amount of ligand, amount of additive and response time which significantly affect the response of proposed sensor. At optimum specified conditions, the high stability, reproducibility and relatively long lifetime of the optical sensor suggest its ability for accurate and precise monitoring of Cu(2+) ion content in various real samples over a concentration range of 1.6×10(-6) to 3.17×10(-5)molL(-1) with a limit of detection of 8.1×10(-7)molL(-1) during response time 6.9min. The proposed optical sensor was successfully applied for the determination of Cu(2+) ion in tap water and different samples.
authors.affiliation: Chemistry Department, Yasouj University, Yasouj 75914-35, Iran. Electronic address: m_ghaedi@mail.yu.ac.ir.
authors.forename: M
authors.initials: M
authors.lastname: Ghaedi
authors.affiliation: Chemistry Department, Yasouj University, Yasouj 75914-35, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Shahamiri
authors.affiliation: Chemistry Department, Yasouj University, Yasouj 75914-35, Iran; Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran.
authors.forename: B
authors.initials: B
authors.lastname: Mirtamizdoust
authors.affiliation: Department of Physics, Yasouj University, Yasouj 75914-35, Iran.
authors.forename: S
authors.initials: S
authors.lastname: Hajati
authors.affiliation: Department of Physics, Yasouj University, Yasouj 75914-35, Iran.
authors.forename: F
authors.initials: F
authors.lastname: Taghizadeh
mesh_terms: D000704:Analysis of Variance; D002138:Calibration; D003300:Copper / Q000032:analysis*; D006834:Hydrazines / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007477:Ions; D008024:Ligands; D008567:Membranes, Artificial; D055095:Optics and Photonics / Q000295:instrumentation; D011143:Polyvinyl Chloride / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D012044:Regression Analysis; D015203:Reproducibility of Results; D012996:Solutions
chemical_list: D006834:Hydrazines; D007477:Ions; D008024:Ligands; D008567:Membranes, Artificial; C000604038:N'1,N'2-bis(pyridine-2-ylmethylene)oxalohydrazide; D011725:Pyridines; D012996:Solutions; D003300:Copper; D011143:Polyvinyl Chloride
keywords: (N′(1)E,N′(2)E)-N′(1),N′(2)-bis(pyridine-2-ylmethylene)oxalohydrazide; Central composite design; Copper (II) ions; Experimental design; Optical sensor