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Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy
In this study, a magnetic metal-organic framework (MOF) was synthesized based on magnetic Fe(3)O(4), Cu(II), and benzene-1,3,5-tricarboxylic acid (Cu-BTC) as a sorbent for solid phase extraction (SPE) of trace amounts of Pb(II) in water and lettuce samples. Pb(II) ion was adsorbed on the magnetic MO...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9873434/ https://www.ncbi.nlm.nih.gov/pubmed/36703710 http://dx.doi.org/10.1155/2023/5424221 |
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author | Sharifi, Arman Hallaj, Rahman Bahar, Soleiman |
author_facet | Sharifi, Arman Hallaj, Rahman Bahar, Soleiman |
author_sort | Sharifi, Arman |
collection | PubMed |
description | In this study, a magnetic metal-organic framework (MOF) was synthesized based on magnetic Fe(3)O(4), Cu(II), and benzene-1,3,5-tricarboxylic acid (Cu-BTC) as a sorbent for solid phase extraction (SPE) of trace amounts of Pb(II) in water and lettuce samples. Pb(II) ion was adsorbed on the magnetic MOF and easily separated by a magnet; therefore, no filtration or centrifugation was necessary. The analyte ions were eluted by HCl 0.5 mol·L(−1) and analyzed via graphite furnace atomic absorption spectroscopy. The prepared sorbent was characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and Fourier transform-infrared (FT-IR) spectroscopy. Under optimal experimental conditions, the method had a linear range of 0.1–50 μg·L(−1). The limits of detection and quantitation for lead were found to be 0.026 and 0.08 μg·L(−1), respectively. The results showed that the prepared sorbent has high selectivity for Pb(2+) even in the presence of other interfering metal ions. |
format | Online Article Text |
id | pubmed-9873434 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-98734342023-01-25 Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy Sharifi, Arman Hallaj, Rahman Bahar, Soleiman J Anal Methods Chem Research Article In this study, a magnetic metal-organic framework (MOF) was synthesized based on magnetic Fe(3)O(4), Cu(II), and benzene-1,3,5-tricarboxylic acid (Cu-BTC) as a sorbent for solid phase extraction (SPE) of trace amounts of Pb(II) in water and lettuce samples. Pb(II) ion was adsorbed on the magnetic MOF and easily separated by a magnet; therefore, no filtration or centrifugation was necessary. The analyte ions were eluted by HCl 0.5 mol·L(−1) and analyzed via graphite furnace atomic absorption spectroscopy. The prepared sorbent was characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and Fourier transform-infrared (FT-IR) spectroscopy. Under optimal experimental conditions, the method had a linear range of 0.1–50 μg·L(−1). The limits of detection and quantitation for lead were found to be 0.026 and 0.08 μg·L(−1), respectively. The results showed that the prepared sorbent has high selectivity for Pb(2+) even in the presence of other interfering metal ions. Hindawi 2023-01-17 /pmc/articles/PMC9873434/ /pubmed/36703710 http://dx.doi.org/10.1155/2023/5424221 Text en Copyright © 2023 Arman Sharifi et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Sharifi, Arman Hallaj, Rahman Bahar, Soleiman Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy |
title | Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy |
title_full | Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy |
title_fullStr | Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy |
title_full_unstemmed | Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy |
title_short | Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy |
title_sort | preconcentration of pb(ii) by magnetic metal-organic frameworks and analysis using graphite furnace atomic absorption spectroscopy |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9873434/ https://www.ncbi.nlm.nih.gov/pubmed/36703710 http://dx.doi.org/10.1155/2023/5424221 |
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