Synthesis and characterization of novel nano-chitosan Schiff base and use of lead (II) sensor
Yükleniyor...
Dosyalar
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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 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.
Açıklama
Anahtar Kelimeler
Nano-chitosan, Schiff base, Carbon paste electrode, Lead (II) sensor, Cyclic voltammetry
Kaynak
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
51
Sayı
5
