NDLI: Chemically modified alumina nanoparticles for selective solid phase extraction and preconcentration of trace amounts of Cd(II)

Content Provider	Springer Nature Link
Author	Afkhami, Abbas Madrakian, Tayyebeh Ahmadi, Reza Bagheri, Hasan Tabatabaee, Masoumeh
Copyright Year	2011
Abstract	We have developed a solid phase extraction method for the determination of cadmium ions in aqueous samples. It is based on the adsorption of Cd(II) on alumina nanoparticles coated with sodium dodecyl sulfate and modified with a newly synthesized Schiff base. Analytical parameters such as pH value, amount of adsorbent, type and concentration of eluent, flow rates of the sample and eluent, sample volume and matrix effects were optimized. Desorption is accomplished with 2 mol L−1 nitric acid. Cd(II) was then determined by flame atomic absorption spectrometry. The maximum enrichment factor is 75. Under the optimum experimental conditions, the detection limit is 0.14 μg L−1 in original solution. The adsorption capacity of the modified sorbent is 4.90 mg g−1 for cadmium ions. The method was applied to the determination of trace quantities of Cd(II) in water, wastewater, and biological and food samples with satisfactory results. Figure Schematic representation of the loading L on the alumina nanoparticles
Starting Page	69
Ending Page	77
Page Count	9
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	175
Issue Number	1-2
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2011-07-12
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Modified alumina nanoparticles Preconcentration Cadmium determination Flame atomic absorption spectrometry Microengineering Nanochemistry Characterization and Evaluation of Materials Analytical Chemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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