Optimization of a saccharin molecularly imprinted solid-phase extraction procedure and evaluation by MIR hyperspectral imaging for analysis of diet tea by HPLC

Dourado, Camila Santos; Domingues, Izabella Fernanda F.; Magalhães, Laiz de Oliveira; Casarin, Fabiana; Ribeiro, Millene Lopes; Braga, Jez Willian Batista; Dias, Ana Cristi Basile

Registro completo de metadados

Campo DC	Valor	Idioma
dc.contributor.author	Dourado, Camila Santos	-
dc.contributor.author	Domingues, Izabella Fernanda F.	-
dc.contributor.author	Magalhães, Laiz de Oliveira	-
dc.contributor.author	Casarin, Fabiana	-
dc.contributor.author	Ribeiro, Millene Lopes	-
dc.contributor.author	Braga, Jez Willian Batista	-
dc.contributor.author	Dias, Ana Cristi Basile	-
dc.date.accessioned	2023-10-17T14:51:17Z	-
dc.date.available	2023-10-17T14:51:17Z	-
dc.date.issued	2021-07-30	-
dc.identifier.citation	DOURADO, Camila Santos et al. Optimization of a saccharin molecularly imprinted solid-phase extraction procedure and evaluation by MIR hyperspectral imaging for analysis of diet tea by HPLC. Food Chemistry, [S.l.], v. 367, 130732, 15 jan. 2022.	pt_BR
dc.identifier.uri	http://repositorio2.unb.br/jspui/handle/10482/46696	-
dc.language.iso	eng	pt_BR
dc.publisher	Elsevier Ltd.	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Optimization of a saccharin molecularly imprinted solid-phase extraction procedure and evaluation by MIR hyperspectral imaging for analysis of diet tea by HPLC	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Sacarina	pt_BR
dc.subject.keyword	Polímeros molecularmente impressos (MIPs)	pt_BR
dc.subject.keyword	Chá	pt_BR
dc.identifier.doi	https://doi.org/10.1016/j.foodchem.2021.130732	pt_BR
dc.relation.publisherversion	https://www.sciencedirect.com/science/article/pii/S0308814621017386?via%3Dihub	pt_BR
dc.description.abstract1	Saccharin was determined based on a new molecularly imprinted solid-phase extraction (MISPE) procedure. The polymer was synthesized with a hybrid monomer of metacrylic acid and 3-amino propril tetraethoxysilane and saccharin as template. After the synthesis, the saccharin removal from the MIP was verified by the UV analysis of the solutions used in the template removal procedure, as well as by the direct MIP analysis using FTIR hyper- spectral image and chemometrics. The residual saccharin concentrations observed in the image analysis revealed a narrow concentration distribution consistent with a homogenous material. The MISPE was performed with homemade cartridges containing 200 mg of the MIP. The results obtained with standards and diet tea samples confirmed high affinity, adsorption capacity and selectivity of the MIP. The MISPE cartridge exhibited recoveries of 100 ± 3% in six extraction cycles. The diet tea analysis showed a significant reduction of the interferences, which can considerable simplifies the HPLC-UV analysis.	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Chemistry	pt_BR
dc.description.unidade	Instituto de Química (IQ)	pt_BR
Aparece nas coleções:	Artigos publicados em periódicos e afins