NDLI: Functionalization of cross linked chitosan with 2-aminopyridine-3-carboxylic acid for solid phase extraction of cadmium and zinc ions and their determination by atomic absorption spectrometry

Content Provider	Springer Nature Link
Author	Suneetha, Yerukala Kumar, Bommana Naresh Harinath, Yapati Reddy, D. Harikishore Kumar Seshaiah, Kalluru
Copyright Year	2011
Abstract	We have developed a new method for solid phase extraction (SPE) and preconcentration of trace amounts of cadmium and zinc using cross linked chitosan that was functionalized with 2-aminopyridine-3-carboxy acid. Analytical parameters, sample pH, effect of flow rate, sample volume, and concentration of eluent on column SPE were investigated. The effect of matrix ions on the recovery of cadmium and zinc has been investigated and were found not to interfere with preconcentration. Under the optimum experimental conditions, the preconcentration factors for Cd(II) and Zn(II) were found to be 90. The two elements were quantified via atomic absorption spectrometry. The detection limits for cadmium and zinc are 21 and 65 ng L−1, respectively. The method was evaluated by analyzing a certified reference material (NIST 1643e; water) and has been successfully applied to the analysis of cadmium and zinc in environmental water samples. Figure A simple and sensitive solid phase extraction method for the preconcentration of Cd(II) and Zn(II) in environmental samples using cross linked chitosan functionalized with 2-aminopyridine-3-carboxylic acid was developed. The metal ions enriched by functionalized chitosan were eluted with acid and determined by AAS.
Starting Page	169
Ending Page	176
Page Count	8
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	176
Issue Number	1-2
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2011-10-09
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Solid phase extraction Chitosan 2-aminopyridine-3-carboxylic acid Metal ions AAS Microengineering Characterization and Evaluation of Materials Nanotechnology Analytical Chemistry Nanochemistry
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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