Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water
In this study, a magnetic porphyrin-based porous organic polymer (MP-POP) nanocomposite was successfully synthesized according previous studies and applied as an adsorbent for simultaneous extraction and preconcentration of four neonicotinoid insecticides from surface river water. The MP-POP was cha...
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| Format: | Article |
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Frontiers Media S.A.
2020-09-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2020.555847/full |
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| author | Shirley K. Selahle Shirley K. Selahle Ngwako J. Waleng Ngwako J. Waleng Anele Mpupa Anele Mpupa Philiswa N. Nomngongo Philiswa N. Nomngongo Philiswa N. Nomngongo |
| author_facet | Shirley K. Selahle Shirley K. Selahle Ngwako J. Waleng Ngwako J. Waleng Anele Mpupa Anele Mpupa Philiswa N. Nomngongo Philiswa N. Nomngongo Philiswa N. Nomngongo |
| author_sort | Shirley K. Selahle |
| collection | DOAJ |
| description | In this study, a magnetic porphyrin-based porous organic polymer (MP-POP) nanocomposite was successfully synthesized according previous studies and applied as an adsorbent for simultaneous extraction and preconcentration of four neonicotinoid insecticides from surface river water. The MP-POP was characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS), N2-adsorption/desorption analysis, Fourier Transform infrared spectroscopy (FTIR). The neonicotinoid insecticides were quantified using high performance chromatography coupled with diode array detector (HPLC-DAD). The MP-POP shown to have a high surface area, highly porous structure and strong affinity toward the investigated analytes. The adsorption capacities were 99.0, 85.5, 90.0, and 79.4 mg g−1 for acetamiprid, clothiandin, thiacloprid and imidacloprid, respectively. The influential parameters affecting the magmatic μ-solid phase extraction (M-μ-SPE) procedure were investigated using fractional factorial design and surface response methodology (RSM). Under optimum conditions, the method exhibited relatively low limit of detection in the range of 1.3–3.2 ng L−1, limit of quantification in the range of 4.3–11 ng L−1 and wide linearity (up to 600 μg L−1). The intraday and interday precision, expressed as the relative standard deviation (RSD) were <5%. The percentage recoveries for the four target analytes ranged from 91 to 99.3% for the spiked river water samples. The method was applied for determination of neonicotinoids in river water samples and concentrations ranged from 0 to 190 ng L−1. |
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| id | doaj.art-e47744a3198d40c2886d2e77e6993f3d |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-12T05:29:14Z |
| publishDate | 2020-09-01 |
| publisher | Frontiers Media S.A. |
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| spelling | doaj.art-e47744a3198d40c2886d2e77e6993f3d2022-12-22T00:36:22ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-09-01810.3389/fchem.2020.555847555847Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface WaterShirley K. Selahle0Shirley K. Selahle1Ngwako J. Waleng2Ngwako J. Waleng3Anele Mpupa4Anele Mpupa5Philiswa N. Nomngongo6Philiswa N. Nomngongo7Philiswa N. Nomngongo8Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Doornfontein, South AfricaDepartment of Science and Innovation/National Research Foundation South African Research Chairs Initiative Chair: Nanotechnology for Water, University of Johannesburg, Doornfontein, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Doornfontein, South AfricaDepartment of Science and Innovation/National Research Foundation South African Research Chairs Initiative Chair: Nanotechnology for Water, University of Johannesburg, Doornfontein, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Doornfontein, South AfricaDepartment of Science and Innovation/National Research Foundation South African Research Chairs Initiative Chair: Nanotechnology for Water, University of Johannesburg, Doornfontein, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Doornfontein, South AfricaDepartment of Science and Innovation/National Research Foundation South African Research Chairs Initiative Chair: Nanotechnology for Water, University of Johannesburg, Doornfontein, South AfricaDepartment of Science and Innovation/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, South AfricaIn this study, a magnetic porphyrin-based porous organic polymer (MP-POP) nanocomposite was successfully synthesized according previous studies and applied as an adsorbent for simultaneous extraction and preconcentration of four neonicotinoid insecticides from surface river water. The MP-POP was characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS), N2-adsorption/desorption analysis, Fourier Transform infrared spectroscopy (FTIR). The neonicotinoid insecticides were quantified using high performance chromatography coupled with diode array detector (HPLC-DAD). The MP-POP shown to have a high surface area, highly porous structure and strong affinity toward the investigated analytes. The adsorption capacities were 99.0, 85.5, 90.0, and 79.4 mg g−1 for acetamiprid, clothiandin, thiacloprid and imidacloprid, respectively. The influential parameters affecting the magmatic μ-solid phase extraction (M-μ-SPE) procedure were investigated using fractional factorial design and surface response methodology (RSM). Under optimum conditions, the method exhibited relatively low limit of detection in the range of 1.3–3.2 ng L−1, limit of quantification in the range of 4.3–11 ng L−1 and wide linearity (up to 600 μg L−1). The intraday and interday precision, expressed as the relative standard deviation (RSD) were <5%. The percentage recoveries for the four target analytes ranged from 91 to 99.3% for the spiked river water samples. The method was applied for determination of neonicotinoids in river water samples and concentrations ranged from 0 to 190 ng L−1.https://www.frontiersin.org/article/10.3389/fchem.2020.555847/fullneonicotinoid insecticidesporphyrin based organic polymerhigh performance liquid chromatographyadsorption mechanism surface watermagnetic solid-phase extraction |
| spellingShingle | Shirley K. Selahle Shirley K. Selahle Ngwako J. Waleng Ngwako J. Waleng Anele Mpupa Anele Mpupa Philiswa N. Nomngongo Philiswa N. Nomngongo Philiswa N. Nomngongo Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water Frontiers in Chemistry neonicotinoid insecticides porphyrin based organic polymer high performance liquid chromatography adsorption mechanism surface water magnetic solid-phase extraction |
| title | Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water |
| title_full | Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water |
| title_fullStr | Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water |
| title_full_unstemmed | Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water |
| title_short | Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water |
| title_sort | magnetic solid phase extraction based on nanostructured magnetic porous porphyrin organic polymer for simultaneous extraction and preconcentration of neonicotinoid insecticides from surface water |
| topic | neonicotinoid insecticides porphyrin based organic polymer high performance liquid chromatography adsorption mechanism surface water magnetic solid-phase extraction |
| url | https://www.frontiersin.org/article/10.3389/fchem.2020.555847/full |
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