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.
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.
Zamani
Hassan Ali
HA
Department of Chemistry, Quchan Branch, Islamic Azad University, Quchan, Iran. haszamani@yahoo.com
Ganjali
Mohammad Reza
MR
Norouzi
Parviz
P
Adib
Mahdi
M
Aceedy
Mohammad
M
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
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