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Título: | Determination of quinolone residues in infant and young children powdered milk combining solid-phase extraction and ultra-performance liquid chromatography–tandem mass spectrometry |
Autor: | Herrera-Herrera, Antonio V.; Hernández-Borges, Javier; Rodríguez-Delgado, Miguel A.; Herrero, Miguel CSIC ORCID CVN ; Cifuentes, Alejandro CSIC ORCID | Palabras clave: | Quinolones Antibiotics UPLC–MS/MS SPE Powdered milk Infants |
Fecha de publicación: | oct-2011 | Editor: | Elsevier | Citación: | Journal of Chromatography A 1218(42): 7608–7614 (2011) | Resumen: | The present work describes a method based on solid-phase extraction (SPE) and ultra-performance liquid chromatography tandem mass spectrometry (UPLC–MS/MS) for the simultaneous determination of three quinolones (pipemidic acid, oxolinic acid and flumequine) and twelve fluoroquinolones (marbofloxacin, fleroxacin, pefloxacin, levofloxacin, norfloxacin, ciprofloxacin, enrofloxacin, danofloxacin, lomefloxacin, difloxacin, sarafloxacin, and moxifloxacin) in different infant and young children powdered milks. After suitable deproteination of the reconstituted powdered samples, a SPE procedure was developed providing recovery values higher than 84% (RSDs lower than 13%) for all the analytes, with limits of detection between 0.04 and 0.52 μg/kg. UPLC–MS/MS analyses were carried out in less than 10 min. Sixteen infant and young children powdered milk samples of different origin, type and composition bought at Spanish markets were analyzed. Residues of the selected antibiotics were not detected in any of the analyzed samples. | Descripción: | 7 páginas, 3 figuras, 3 tablas.-- El pdf del artículo es la versión pre-print. | Versión del editor: | http://dx.doi.org/10.1016/j.chroma.2011.05.066 | URI: | http://hdl.handle.net/10261/47388 | DOI: | 10.1016/j.chroma.2011.05.066 | ISSN: | 0021-9673 |
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Determination_of_quinolone_residues.pdf | 106,02 kB | Adobe PDF | Visualizar/Abrir |
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