title: Synthesis of N'-(1-pyridin-2-ylmethylene)-2-furohydrazide and its application in construction of a highly selective PVC-based membrane sensor for La(III) ions.
abstract: A highly La(III) ion-selective PVC membrane sensor based on N'-(1-pyridin-2-ylmethylene)-2-furohydrazide (NPYFH) as an excellent sensing material was successfully developed. The electrode shows a good selectivity for La(III) ion with respect to most common cations including alkali, alkaline earth, transition and heavy metal ions. The proposed sensor exhibits a wide linear response with slope of 19.2 +/- 0.6 mV per decade over the concentration range of 1.0 x 10(-6) - 1.0 x 10(-1) M, and a detection limit of 7.0 x 10(-7) M of La(III) ions. The sensor response is independent of pH in the range of 3.5-10.0. The proposed electrode was applied as an indicator electrode in potentiometric titration of La(III) ion with EDTA.
authors.affiliation: Department of Chemistry, Quchan Branch, Islamic Azad University, Quchan, Iran. haszamani@yahoo.com
authors.forename: Hassan Ali
authors.initials: HA
authors.lastname: Zamani
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ganjali
authors.forename: Parviz
authors.initials: P
authors.lastname: Norouzi
authors.forename: Mahdi
authors.initials: M
authors.lastname: Adib
authors.forename: Mohammad
authors.initials: M
authors.lastname: Aceedy
mesh_terms: D005663:Furans / Q000138:chemical synthesis* / Q000737:chemistry; D006834:Hydrazines / Q000138:chemical synthesis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007811:Lanthanum / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008567:Membranes, Artificial; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D011143:Polyvinyl Chloride / Q000737:chemistry*; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry; D012680:Sensitivity and Specificity
chemical_list: D005663:Furans; D006834:Hydrazines; D008567:Membranes, Artificial; C516988:N'-(1-pyridin-2-ylmethylene)-2-furohydrazide; D009942:Organometallic Compounds; D011725:Pyridines; D007811:Lanthanum; D011143:Polyvinyl Chloride