MnO2/3MgO Nanocomposite for Preconcentration and Determination of Trace Copper and Lead in Food and Water by Flame Atomic Absorption Spectrometry
- Authors: Khayatian G.1, Moradi M.1, Hassanpoor S.1
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Affiliations:
- Department of Chemistry, Faculty of Science
- Issue: Vol 73, No 5 (2018)
- Pages: 470-478
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183029
- DOI: https://doi.org/10.1134/S1061934818050088
- ID: 183029
Cite item
Abstract
The presented study investigates the application of MnO2/3MgO nanocomposite, as a new sorbent for solid phase extraction and determination of trace amounts of Pb2+ and Cu2+ from various samples using flame atomic absorption spectrometry. After extraction, the analytes were desorbed using 0.01 M ethylenediaminetetraacetic acid. The effects of various parameters were studied and optimized. Under optimized experimental conditions the linear dynamic ranges for Cu2+ and Pb2+ were 10‒900 and 30‒900 μg/L, respectively, with a preconcentration factor of 20. The detection limits of Cu2+ and Pb2+ were 4 and 11 μg/L, respectively, and relative standard deviations for eight determinations of 100 μg/L were 3.6 and 3.8% for Cu2+ and Pb2+, respectively. The method was successfully applied for determination of copper and lead in mushrooms, rice, tap water and refinery wastewater with good spike recoveries ranging between 95‒106%.
Keywords
About the authors
Gholamreza Khayatian
Department of Chemistry, Faculty of Science
Author for correspondence.
Email: gkhayatian@uok.ac.ir
Iran, Islamic Republic of, Sanandaj, 6617973717
Marzieh Moradi
Department of Chemistry, Faculty of Science
Email: gkhayatian@uok.ac.ir
Iran, Islamic Republic of, Sanandaj, 6617973717
Shahed Hassanpoor
Department of Chemistry, Faculty of Science
Email: gkhayatian@uok.ac.ir
Iran, Islamic Republic of, Sanandaj, 6617973717