title: Synthesis and characterization of novel nano-chitosan Schiff base and use of lead (II) sensor.
abstract: A new kind of nano-chitosan Schiff base ligand (CHNS) with particle size of 34 nm was formed by the reaction between the 2-amino groups of glucosamine residue of nano-chitosan and a 2,5-dihydroxybenzaldehyde. The chemical structures of the nano-chitosan and nano-chitosan Schiff base were characterized by FT-IR spectra, particle sizer, zeta potential, and elemental analysis. A new, simple and effective chemically modified carbon paste electrode with CHNS was prepared and used as a lead (II) sensor. The prepared electrode was characterized using scanning electronic microscopy (SEM-EDX) and cyclic voltammetry (CV). The modified electrode showed only one oxidation peak in the anodic scan at -0.34 V (vs. Ag/AgCl) for the oxidation of lead (II). The dedection limit (LOD) was calculated as 1.36×10(-7) for a 10-min preconcentration time at pH 6.0.
authors.affiliation: Necmettin Erbakan University, Faculty of Education, Department of Science Education, 42090 Konya, Turkey. nuriyekocak71@gmail.com
authors.forename: Nuriye
authors.initials: N
authors.lastname: Kocak
authors.forename: Mustafa
authors.initials: M
authors.lastname: Sahin
authors.forename: Semahat
authors.initials: S
authors.lastname: Kücükkolbasi
authors.forename: Zehra Ozden
authors.initials: ZO
authors.lastname: Erdogan
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry; D002138:Calibration; D002244:Carbon / Q000737:chemistry; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D060326:Chemistry Techniques, Synthetic; D048271:Chitosan / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000032:analysis* / Q000737:chemistry; D008024:Ligands; D057230:Limit of Detection; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012545:Schiff Bases / Q000737:chemistry; D013997:Time Factors
chemical_list: D001547:Benzaldehydes; D008024:Ligands; D012545:Schiff Bases; C112784:2,5-dihydroxybenzaldehyde; D007854:Lead; D002244:Carbon; D048271:Chitosan