Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples
This study reports the development of magnetic solid-phase extraction combined with high-performance liquid chromatography for the determination of ten trace amounts of emerging contaminants (fluoroquinolone antibiotics, parabens, anticonvulsants and β-blockers) in water systems. Magnetic mesoporous...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/2/540 |
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| author | Geaneth Pertunia Mashile Anele Mpupa Philiswa Nosizo Nomngongo |
| author_facet | Geaneth Pertunia Mashile Anele Mpupa Philiswa Nosizo Nomngongo |
| author_sort | Geaneth Pertunia Mashile |
| collection | DOAJ |
| description | This study reports the development of magnetic solid-phase extraction combined with high-performance liquid chromatography for the determination of ten trace amounts of emerging contaminants (fluoroquinolone antibiotics, parabens, anticonvulsants and β-blockers) in water systems. Magnetic mesoporous carbon/β-cyclodextrin–chitosan (MMPC/Cyc-Chit) was used as an adsorbent in dispersive magnetic solid-phase extraction (DMSPE). The magnetic solid-phase extraction method was optimized using central composite design. Under the optimum conditions, the limits of detection (LODs) ranged from 0.1 to 0.7 ng L<sup>−1</sup>, 0.5 to 1.1 ng L<sup>−1</sup> and 0.2 to 0.8 ng L<sup>−1</sup> for anticonvulsants and β-blockers, fluoroquinolone and parabens, respectively. Relatively good dynamic linear ranges were obtained for all the investigated analytes. The repeatability (<i>n</i> = 7) and reproducibility (<i>n</i> = 5) were less than 5%, while the enrichment factors ranged between 90 and 150. The feasibility of the method in real samples was assessed by analysis of river water, tap water and wastewater samples. The recoveries for the investigated analytes in the real samples ranged from 93.5 to 98.8%, with %RSDs under 4%. |
| first_indexed | 2024-03-09T00:40:48Z |
| format | Article |
| id | doaj.art-923aada6bf3e4a8cb53c6e7576fd15ab |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T00:40:48Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-923aada6bf3e4a8cb53c6e7576fd15ab2023-12-11T17:49:17ZengMDPI AGNanomaterials2079-49912021-02-0111254010.3390/nano11020540Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental SamplesGeaneth Pertunia Mashile0Anele Mpupa1Philiswa Nosizo Nomngongo2Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein 2028, South AfricaThis study reports the development of magnetic solid-phase extraction combined with high-performance liquid chromatography for the determination of ten trace amounts of emerging contaminants (fluoroquinolone antibiotics, parabens, anticonvulsants and β-blockers) in water systems. Magnetic mesoporous carbon/β-cyclodextrin–chitosan (MMPC/Cyc-Chit) was used as an adsorbent in dispersive magnetic solid-phase extraction (DMSPE). The magnetic solid-phase extraction method was optimized using central composite design. Under the optimum conditions, the limits of detection (LODs) ranged from 0.1 to 0.7 ng L<sup>−1</sup>, 0.5 to 1.1 ng L<sup>−1</sup> and 0.2 to 0.8 ng L<sup>−1</sup> for anticonvulsants and β-blockers, fluoroquinolone and parabens, respectively. Relatively good dynamic linear ranges were obtained for all the investigated analytes. The repeatability (<i>n</i> = 7) and reproducibility (<i>n</i> = 5) were less than 5%, while the enrichment factors ranged between 90 and 150. The feasibility of the method in real samples was assessed by analysis of river water, tap water and wastewater samples. The recoveries for the investigated analytes in the real samples ranged from 93.5 to 98.8%, with %RSDs under 4%.https://www.mdpi.com/2079-4991/11/2/540anticonvulsants and β-blockersparabensmesoporous carbonfluoroquinoloneβ-cyclodextringlobal concentration |
| spellingShingle | Geaneth Pertunia Mashile Anele Mpupa Philiswa Nosizo Nomngongo Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples Nanomaterials anticonvulsants and β-blockers parabens mesoporous carbon fluoroquinolone β-cyclodextrin global concentration |
| title | Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples |
| title_full | Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples |
| title_fullStr | Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples |
| title_full_unstemmed | Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples |
| title_short | Magnetic Mesoporous Carbon/β-Cyclodextrin–Chitosan Nanocomposite for Extraction and Preconcentration of Multi-Class Emerging Contaminant Residues in Environmental Samples |
| title_sort | magnetic mesoporous carbon β cyclodextrin chitosan nanocomposite for extraction and preconcentration of multi class emerging contaminant residues in environmental samples |
| topic | anticonvulsants and β-blockers parabens mesoporous carbon fluoroquinolone β-cyclodextrin global concentration |
| url | https://www.mdpi.com/2079-4991/11/2/540 |
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