Evaluation of the performance of a selective magnetite molecularly imprinted polymer for extraction of quercetin from onion samples
| Autor: | Ali Muhammad Mahar, Abdul Hameed Pato, Abdullah, Aamna Balouch, Esra Alveroglu, Muhammad Saqaf Jagirani, Sabir Khan |
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| Přispěvatelé: | University of Sindh, Faculty of Science and Letters, Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Langmuir
Analyte Sorbent Chromatography Chemistry 010401 analytical chemistry Extraction (chemistry) Molecularly imprinted polymer 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Analytical Chemistry Polymerization chemistry.chemical_compound Adsorption Polymeric sorbent Quercetin 0210 nano-technology Spectroscopy Magnetite |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2021-06-25T10:48:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-01 In the present study, we report the synthesis of selective magnetite molecular imprinted polymer (Fe3O4@SiO2@NH2-Que-MIP) for the first time by a simple ultrasonic mediated co-precipitation polymerization route and applied as a sorbent for selective extraction of quercetin from onion samples. The ultrasonic energy is not only a green source of energy but also reduces the polymerization reaction time 5 folds as compared to the conventional route. The surface morphology and functionality of the prepared polymeric sorbent was characterized by SEM and FT-IR. The adsorption mechanistic pattern was best defined by Langmuir and the pseudo-second-order kinetic. Different influencing parameters on the quercetin rebinding such as pH, dose, contact time, the concentration of an analyte, and temperature were optimized to get maximum adsorption capacity. The regeneration study of the polymeric sorbent was also carried out. A good linear concentration range of (0.32–25) µg/mL was attained. The LOQ and LOD were 0.20 and 0.06 µg/mL respectively. The method validation and analytical performances were obtained for the developed polymeric sorbent by spiking with quercetin in onion samples, and the results were found in good agreement with the spiking value. The developed polymeric sorbent was applied successfully for the selective extraction of quercetin from real samples. National Centre of Excellence in Analytical Chemistry University of Sindh Istanbul Technical University Faculty of Science and Letters Department of Physics Engineering, Maslak, 34467 Sariyer Instituto de Química Universidade Estadual Paulista (UNESP) Departamento de Química Analítica Instituto de Química Universidade Estadual Paulista (UNESP) Departamento de Química Analítica |
| Databáze: | OpenAIRE |
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