Magnetic Graphene Oxide as an Efficient Adsorbent for the Separation and Preconcentration of Cu(II), Pb(II), and Cd(II) from Environmental Samples
The separation and preconcentration of copper(II), lead(II), and cadmium(II) ions on magnetic graphene oxide (MGO) by solid-phase extraction was carried out. Quantitative recovery was obtained by adsorption of analytes on MGO at pH 6 and elution of 3 M HNO3 in 10% acetone.
To optimize the presented method, the effects of various parameters—including pH, eluent conditions, and vortex time—were examined. Matrix effects were also investigated. Mean recoveries of the analytes were between 95 and 105%. The proposed method was validated by applying it
to certified reference materials. Addition and recovery tests were also performed. The method was applied to verify the analyte content of several water and food samples.
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Document Type: Research Article
Affiliations: 1: Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey 2: Building Physics and Environment Institute, Housing and Building National Research Center, Dokki, Cairo 12311, Egypt 3: National Research Centre, Spectroscopy Department, 33 El-Bohouth St, 12622 Dokki, Giza 12311, Egypt
Publication date: 01 September 2017
This article was made available online on 20 April 2017 as a Fast Track article with title: "Magnetic Graphene Oxide as an Efficient Adsorbent for the Separation and Preconcentration of Cu(II), Pb(II), and Cd(II) from Environmental Samples".
- The Journal of AOAC INTERNATIONAL publishes refereed papers and reviews in the fields of chemical, biological and toxicological analytical chemistry for the purpose of showcasing the most precise, accurate and sensitive methods for analysis of foods, food additives, supplements and contaminants, cosmetics, drugs, toxins, hazardous substances, pesticides, feeds, fertilizers and the environment available at that point in time. The scope of the Journal includes unpublished original research describing new analytical methods, techniques and applications; improved approaches to sampling, both in the field and the laboratory; better methods of preparing samples for analysis; collaborative studies substantiating the performance of a given method; statistical techniques for evaluating data. The Journal will also publish other articles of general interest to its audience, e.g., technical communications; cautionary notes; comments on techniques, apparatus, and reagents.
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