Rapid and selective extraction of trace amount of Pb(II) in aqueous samples using a magnetic ion-imprinted polymer and detection by flame atomic absorption spectrometry
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| Format: | Artículo científico |
| Sprache: | en |
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Universidade Estadual Paulista Júlio de Mesquita Filho
2019
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| _version_ | 1876478748731113472 |
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| author | Saeed Babaee |
| author_facet | Saeed Babaee |
| contents | Rapid and selective extraction of trace amount of Pb(II) in aqueous samples using a magnetic ion-imprinted polymer and detection by flame atomic absorption spectrometry Saeed Babaee Seyed Ghorban Hosseini Mohammad Mirzaei Química lead benzoyl magnetic Extraction phenyl hydroxylamine A magnetic Pb(II) ion-imprinted polymer was synthesized using magnetic Fe3O4@SiO2 nanospheres as supporter, n-benzoyl-n-phenyl hydroxylamine as ligand, 4-vinyl pyridine as monomer, ethylene glycol dimethacrylate as crosslinker and 2,2′-azobis(isobutyronitrile) as the initiator. The template was removed from the polymer using 4 mL of HCl (2 mol L-1). The chemical structure, morphology-particle size, elemental analysis, thermal behavior and magnetic properties of the sorbent were evaluated using Fourier-transform infrared spectroscopy, scanning electron microscopy & ImageJ software - Energy dispersive X-ray system, thermal gravimetric analysis and vibrating sample magnetometry. Various parameters such as pH, equilibrium extraction time, temperature and the eluent were optimized. The results showed the sorbent adsorption capacity was 92.3 mg g-1 in pH 6.0 media, equilibrium time of 7 min at 40 °C. Calibration linearity was 2-150 µg L-1 with detection limit of 0.3 µg L-1. The prepared sorbent had high selectivity and was successfully applied to the removing of lead in real samples. 2019 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42960727006 https://www.redalyc.org/journal/429/42960727006/ https://www.redalyc.org/journal/429/42960727006/html/ https://www.redalyc.org/journal/429/42960727006/42960727006.epub https://www.redalyc.org/journal/429/42960727006/movil https://doi.org/10.26850/1678-4618eqj.v44.4.2019.p73-84 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.4 Vol.44 |
| format | Artículo científico |
| id | redalyc_42960727006 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Rapid and selective extraction of trace amount of Pb(II) in aqueous samples using a magnetic ion-imprinted polymer and detection by flame atomic absorption spectrometry Saeed Babaee Química lead benzoyl magnetic Extraction phenyl hydroxylamine Rapid and selective extraction of trace amount of Pb(II) in aqueous samples using a magnetic ion-imprinted polymer and detection by flame atomic absorption spectrometry Saeed Babaee Seyed Ghorban Hosseini Mohammad Mirzaei Química lead benzoyl magnetic Extraction phenyl hydroxylamine A magnetic Pb(II) ion-imprinted polymer was synthesized using magnetic Fe3O4@SiO2 nanospheres as supporter, n-benzoyl-n-phenyl hydroxylamine as ligand, 4-vinyl pyridine as monomer, ethylene glycol dimethacrylate as crosslinker and 2,2′-azobis(isobutyronitrile) as the initiator. The template was removed from the polymer using 4 mL of HCl (2 mol L-1). The chemical structure, morphology-particle size, elemental analysis, thermal behavior and magnetic properties of the sorbent were evaluated using Fourier-transform infrared spectroscopy, scanning electron microscopy & ImageJ software - Energy dispersive X-ray system, thermal gravimetric analysis and vibrating sample magnetometry. Various parameters such as pH, equilibrium extraction time, temperature and the eluent were optimized. The results showed the sorbent adsorption capacity was 92.3 mg g-1 in pH 6.0 media, equilibrium time of 7 min at 40 °C. Calibration linearity was 2-150 µg L-1 with detection limit of 0.3 µg L-1. The prepared sorbent had high selectivity and was successfully applied to the removing of lead in real samples. 2019 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42960727006 https://www.redalyc.org/journal/429/42960727006/ https://www.redalyc.org/journal/429/42960727006/html/ https://www.redalyc.org/journal/429/42960727006/42960727006.epub https://www.redalyc.org/journal/429/42960727006/movil https://doi.org/10.26850/1678-4618eqj.v44.4.2019.p73-84 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.4 Vol.44 |
| title | Rapid and selective extraction of trace amount of Pb(II) in aqueous samples using a magnetic ion-imprinted polymer and detection by flame atomic absorption spectrometry |
| topic | Química lead benzoyl magnetic Extraction phenyl hydroxylamine |
| url | https://www.redalyc.org/articulo.oa?id=42960727006 https://www.redalyc.org/journal/429/42960727006/ https://www.redalyc.org/journal/429/42960727006/html/ https://www.redalyc.org/journal/429/42960727006/42960727006.epub https://www.redalyc.org/journal/429/42960727006/movil https://doi.org/10.26850/1678-4618eqj.v44.4.2019.p73-84 |