Determination of four bisphenols in water and urine samples by magnetic dispersive solid‐phase extraction using a modified zeolite/iron oxide composite prior to liquid chromatography diode array detection
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http://hdl.handle.net/10045/107027
Títol: | Determination of four bisphenols in water and urine samples by magnetic dispersive solid‐phase extraction using a modified zeolite/iron oxide composite prior to liquid chromatography diode array detection |
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Autors: | Baile, Paola | Medina, Juan | Vidal, Lorena | Canals, Antonio |
Grups d'investigació o GITE: | Espectroscopía Atómica-Masas y Química Analítica en Condiciones Extremas |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología | Universidad de Alicante. Instituto Universitario de Materiales |
Paraules clau: | Bisphenols | Magnetic dispersive solid-phase extraction | Urine samples | Water samples | Zeolites |
Àrees de coneixement: | Nutrición y Bromatología | Química Analítica |
Data de publicació: | de maig-2020 |
Editor: | Wiley-VCH Verlag GmbH & Co. KGaA |
Citació bibliogràfica: | Journal of Separation Science. 2020, 43(9-10): 1808-1816. doi:10.1002/jssc.201901022 |
Resum: | A novel approach is presented to determine four bisphenols in water and urine samples, employing magnetic dispersive solid‐phase extraction combined with liquid chromatography and diode array detection. A modified zeolite‐based magnetic composite was used as an efficient sorbent, combining the advantages of magnetic materials with the remarkable properties of zeolites. A multivariate optimization design was employed to optimize some experimental factors affecting magnetic dispersive solid‐phase extraction. The method was evaluated under optimized conditions (i.e., amount of sorbent, 50 mg; sample pH, unadjusted; NaCl concentration, 1.25%; extraction and elution time, 2 min; eluent solvent, ethanol; eluent solvent volume, 400 µL), obtaining good linearity with correlation coefficients ranging between 0.995 and 0.999 (N = 5) (from 2 to 250 µg/L for bisphenol A, bisphenol AP, and bisphenol P and from 5 to 250 µg/L for bisphenol AF). Method repeatability was assessed obtaining coefficients of variation between 3 and 11% (n = 6). Finally, the method was applied to spiked real samples, obtaining for water samples relative recoveries between 83 and 105%, and for urine samples between 81 and 108% for bisphenol A, bisphenol AP, and bisphenol AF, and between 47 and 59% for bisphenol P. |
Patrocinadors: | The authors would like to thank the Spanish Ministry of Economy and Competitiveness and European Union (FEDER funds) (project no. CTQ2016-79991-R) and Generalitat Valenciana (Spain) (project no. PROMETEO/2018/087) for the financial support. P. Baile also thanks Ministry of Education, Culture and Sports for her FPU grant (FPU14/04589). |
URI: | http://hdl.handle.net/10045/107027 |
ISSN: | 1615-9306 (Print) | 1615-9314 (Online) |
DOI: | 10.1002/jssc.201901022 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1002/jssc.201901022 |
Apareix a la col·lecció: | INV - SP-BG - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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Baile_etal_2020_JSeparationSci_final.pdf | Versión final (acceso restringido) | 1,85 MB | Adobe PDF | Obrir Sol·licitar una còpia |
Baile_etal_2020_JSeparationSci_accepted.pdf | Accepted Manuscript (acceso abierto) | 746,7 kB | Adobe PDF | Obrir Vista prèvia |
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