MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection
Abstract A simple, rapid, and efficient ultrasound-assisted dispersive solid-phase microextraction (UA-DSPME) method was developed for the preconcentration of carbamazepine (CBZ) in wastewater prior to high-performance liquid chromatography coupled with diode array (HPLC-DAD) determination. The carb...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-07-01
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| Series: | Journal of Analytical Science and Technology |
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| Online Access: | http://link.springer.com/article/10.1186/s40543-019-0185-1 |
| _version_ | 1818306591085035520 |
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| author | Malesela William Lekota K. Mogolodi Dimpe Philiswa Nosizo Nomngongo |
| author_facet | Malesela William Lekota K. Mogolodi Dimpe Philiswa Nosizo Nomngongo |
| author_sort | Malesela William Lekota |
| collection | DOAJ |
| description | Abstract A simple, rapid, and efficient ultrasound-assisted dispersive solid-phase microextraction (UA-DSPME) method was developed for the preconcentration of carbamazepine (CBZ) in wastewater prior to high-performance liquid chromatography coupled with diode array (HPLC-DAD) determination. The carbon nanofibers coated with magnesium oxide-zinc oxide (MgO-ZnO@CNFs) nanocomposite was used as an efficient adsorbent in magnetic dispersive solid-phase microextraction method. The structural and morphological properties of the nanocomposite were characterized by scanning electron microscopy and energy dispersive spectroscopy, transmission electron microscopy, X-ray diffractometer, and Fourier transform infrared spectroscopy. The surface area was investigated using Brunauer–Emmett–Teller. Several factors (such as pH, mass of adsorbent, extraction time, and eluent volume) that affect extraction and preconcentration of CBZ were also assessed and optimized using response surface methodology based on central composite design. Under optimal conditions, the limits of detection (LOD) and quantification were 0.08 μg L−1 and 0.29 μg L−1, respectively. The calibration curve constructed after preconcentration of seven successive standards was linear in the concentration range of 0.3–800 μg L−1 with the correlation coefficient of 0.9922. The intra-day and inter-day precisions expressed in terms of relative standard deviation were 1.4% and 4.2%. A preconcentration factor of 490 was achieved, and the method was applied for the analysis of spiked wastewater. Satisfactory recoveries ranging from 97.8 to 102% were obtained. |
| first_indexed | 2024-12-13T06:44:55Z |
| format | Article |
| id | doaj.art-0cc3ee2b976944319ce78281e9067f42 |
| institution | Directory Open Access Journal |
| issn | 2093-3371 |
| language | English |
| last_indexed | 2024-12-13T06:44:55Z |
| publishDate | 2019-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Analytical Science and Technology |
| spelling | doaj.art-0cc3ee2b976944319ce78281e9067f422022-12-21T23:56:19ZengSpringerOpenJournal of Analytical Science and Technology2093-33712019-07-0110111210.1186/s40543-019-0185-1MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detectionMalesela William Lekota0K. Mogolodi Dimpe1Philiswa Nosizo Nomngongo2Department of Chemical Sciences (Former Applied Chemistry), University of JohannesburgDepartment of Chemical Sciences (Former Applied Chemistry), University of JohannesburgDepartment of Chemical Sciences (Former Applied Chemistry), University of JohannesburgAbstract A simple, rapid, and efficient ultrasound-assisted dispersive solid-phase microextraction (UA-DSPME) method was developed for the preconcentration of carbamazepine (CBZ) in wastewater prior to high-performance liquid chromatography coupled with diode array (HPLC-DAD) determination. The carbon nanofibers coated with magnesium oxide-zinc oxide (MgO-ZnO@CNFs) nanocomposite was used as an efficient adsorbent in magnetic dispersive solid-phase microextraction method. The structural and morphological properties of the nanocomposite were characterized by scanning electron microscopy and energy dispersive spectroscopy, transmission electron microscopy, X-ray diffractometer, and Fourier transform infrared spectroscopy. The surface area was investigated using Brunauer–Emmett–Teller. Several factors (such as pH, mass of adsorbent, extraction time, and eluent volume) that affect extraction and preconcentration of CBZ were also assessed and optimized using response surface methodology based on central composite design. Under optimal conditions, the limits of detection (LOD) and quantification were 0.08 μg L−1 and 0.29 μg L−1, respectively. The calibration curve constructed after preconcentration of seven successive standards was linear in the concentration range of 0.3–800 μg L−1 with the correlation coefficient of 0.9922. The intra-day and inter-day precisions expressed in terms of relative standard deviation were 1.4% and 4.2%. A preconcentration factor of 490 was achieved, and the method was applied for the analysis of spiked wastewater. Satisfactory recoveries ranging from 97.8 to 102% were obtained.http://link.springer.com/article/10.1186/s40543-019-0185-1MgO-ZnO@CNFs nanocompositeDispersive solid-phase microextractionCarbamazepineDesirability function |
| spellingShingle | Malesela William Lekota K. Mogolodi Dimpe Philiswa Nosizo Nomngongo MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection Journal of Analytical Science and Technology MgO-ZnO@CNFs nanocomposite Dispersive solid-phase microextraction Carbamazepine Desirability function |
| title | MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection |
| title_full | MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection |
| title_fullStr | MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection |
| title_full_unstemmed | MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection |
| title_short | MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection |
| title_sort | mgo zno carbon nanofiber nanocomposite as an adsorbent for ultrasound assisted dispersive solid phase microextraction of carbamazepine from wastewater prior to high performance liquid chromatographic detection |
| topic | MgO-ZnO@CNFs nanocomposite Dispersive solid-phase microextraction Carbamazepine Desirability function |
| url | http://link.springer.com/article/10.1186/s40543-019-0185-1 |
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