Kocak, NuriyeSahin, MustafaKucukkolbasi, SemahatErdogan, Zehra Ozden2020-03-262020-03-2620120141-8130https://dx.doi.org/10.1016/j.ijbiomac.2012.09.003https://hdl.handle.net/20.500.12395/28450A 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 x 10(-7) for a 10-min preconcentration time at pH 6.0. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.en10.1016/j.ijbiomac.2012.09.003info:eu-repo/semantics/closedAccessNano-chitosanSchiff baseCarbon paste electrodeLead (II) sensorCyclic voltammetryArticle5151159116622982811Q1WOS:000311196100070Q3