Evaluation of the performance of a selective magnetite molecularly imprinted polymer for extraction of quercetin from onion samples

dc.contributor.authorAbdullah,
dc.contributor.authorAlveroglu, Esra
dc.contributor.authorBalouch, Aamna
dc.contributor.authorKhan, Sabir [UNESP]
dc.contributor.authorMahar, Ali Muhammad
dc.contributor.authorJagirani, Muhammad Saqaf
dc.contributor.authorPato, Abdul Hameed
dc.contributor.institutionUniversity of Sindh
dc.contributor.institutionFaculty of Science and Letters
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2021-06-25T10:48:29Z
dc.date.available2021-06-25T10:48:29Z
dc.date.issued2021-03-01
dc.description.abstractIn 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.en
dc.description.affiliationNational Centre of Excellence in Analytical Chemistry University of Sindh
dc.description.affiliationIstanbul Technical University Faculty of Science and Letters Department of Physics Engineering, Maslak, 34467 Sariyer
dc.description.affiliationInstituto de Química Universidade Estadual Paulista (UNESP) Departamento de Química Analítica
dc.description.affiliationUnespInstituto de Química Universidade Estadual Paulista (UNESP) Departamento de Química Analítica
dc.identifierhttp://dx.doi.org/10.1016/j.microc.2020.105849
dc.identifier.citationMicrochemical Journal, v. 162.
dc.identifier.doi10.1016/j.microc.2020.105849
dc.identifier.issn0026-265X
dc.identifier.scopus2-s2.0-85098736370
dc.identifier.urihttp://hdl.handle.net/11449/207069
dc.language.isoeng
dc.relation.ispartofMicrochemical Journal
dc.sourceScopus
dc.subjectPolymeric sorbent
dc.subjectPolymerization
dc.subjectQuercetin
dc.titleEvaluation of the performance of a selective magnetite molecularly imprinted polymer for extraction of quercetin from onion samplesen
dc.typeArtigo

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