Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/114757
Campo DC Valoridioma
dc.contributor.authorMontesdeoca Esponda, Sarahen_US
dc.contributor.authorSosa Ferrera, María Zoraidaen_US
dc.contributor.authorSantana Rodríguez, José Juanen_US
dc.date.accessioned2022-05-17T08:46:32Z-
dc.date.available2022-05-17T08:46:32Z-
dc.date.issued2014en_US
dc.identifier.isbn84-697-0471-0en_US
dc.identifier.urihttp://hdl.handle.net/10553/114757-
dc.description.abstractFluoroquinolones (FQs) are a class of antibiotics used in human and animal medicine for therapeutic purpose as against both gram-positive and gram-negative bacteria. After their excretion, they are accumulated in wastewater treatment plants (WWTPs) because there are no mechanisms to eliminate them completely. In this way, the pollutants contained in the treated water can be deposited in coastal sediments around wastewater marine outfalls. FQs are resistant to microbial degradation and may be persistent in the environment. Thus, to prevent the growth of resistant bacteria, monitoring FQ concentrations in different kinds of environmental samples is necessary, especially in solid samples, where they can be accumulated. This work present an analytical green approach for the quantification of five FQs (levofloxacin, nor- floxacin, ciprofloxacin, enrofloxacin and sarafloxacin) in sediments from coastal points of the south of Gran Canaria island (Spain) that had not been studied previously. The simple area is affected by a marine outfall discharging wastewaters. We selected microwave assisted extraction (MAE) as extraction technique, replacing the organic sol- vents by micellar media as extraction agents, being then called Microwave-assisted micellar extraction (MAME). Micellar media are no toxic, biodegradable, less expensive than organic solvents and compat- ible with the mobile phase used in liquid chromatography (LC). Moreover they can enhance the signal of many compounds in fluorescence detection. Analysis was performed using liquid chromatography with fluorescence detection and electrospray ionization–tandem mass spectrometry detection (LC-FD and LC-ESI-MS/MS, respectively). Under optimal conditions, we obtained recoveries greater than 73% with relative standard deviations below 8%. The limits of detection achieved using MAME-LC-ESI/MS/MS were between 0.15 and 0.55 ng g−1 for the different FQs. Four fluoroquinolones (levofloxacin, norfloxacin, ciprofloxacin and enrofloxacin) were found in the coastal marine sediments in concentrations between 0.81 and 34.3 ng g−1, which means that the sediment absorbs the antibiotics dissolved in the effluent of the marine outfall, showing also that their accumulation was higher closer to the outfall and lower nearer to the coast.en_US
dc.languageengen_US
dc.sourceBook of Abstracts submitted to the IV Congress of Marine Sciences. Las Palmas de Gran Canaria, June 11th to 13th 2014, p. 304en_US
dc.subject2510 Oceanografíaen_US
dc.subject251001 Oceanografía biológicaen_US
dc.subject251002 Oceanografía químicaen_US
dc.subject330811 Control de la contaminación del aguaen_US
dc.titleQuantification of fluoroquinolone antibiotics in coastal marine sediments of Gran Canaria island using a green methodologyen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.typeConferenceObjecten_US
dc.relation.conferenceIV Congress of Marine Sciencesen_US
dc.description.lastpage304en_US
dc.description.firstpage304en_US
dc.investigacionCienciasen_US
dc.type2Póster de congresosen_US
dc.description.numberofpages1en_US
dc.utils.revisionen_US
dc.identifier.ulpgcen_US
dc.contributor.buulpgcBU-BASen_US
dc.contributor.buulpgcBU-BASen_US
dc.contributor.buulpgcBU-BASen_US
dc.contributor.buulpgcBU-BASen_US
item.fulltextCon texto completo-
item.grantfulltextopen-
crisitem.author.deptGIR IUNAT: Análisis Químico Medioambiental-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Química-
crisitem.author.deptGIR IUNAT: Análisis Químico Medioambiental-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Química-
crisitem.author.deptGIR IUNAT: Análisis Químico Medioambiental-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Química-
crisitem.author.orcid0000-0001-9872-5293-
crisitem.author.orcid0000-0003-3003-3607-
crisitem.author.orcid0000-0002-5635-7215-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.fullNameMontesdeoca Esponda, Sarah-
crisitem.author.fullNameSosa Ferrera, María Zoraida-
crisitem.author.fullNameSantana Rodríguez, José Juan-
crisitem.event.eventsstartdate11-06-2014-
crisitem.event.eventsenddate13-06-2014-
Colección:Póster de congreso
miniatura
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