Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47153
Title: Solid-phase microextraction with micellar desorption and HPLC-fluorescence detection for the analysis of fluoroquinolones residues in water samples
Authors: Esponda, Sarah Montesdeoca 
Padrón, Ma Esther Torres 
Ferrera, Zoraida Sosa 
Rodríguez, José Juan Santana 
UNESCO Clasification: 2301 química analítica
2391 Química ambiental
Keywords: Solid-phase microextraction
Surfactants
Fluoroquinolones
High-performance liquid chromatography
Fluorescence, et al
Issue Date: 2009
Publisher: 1618-2642
Project: Acoplamiento de la Microextracción en Fase Sólida y la Cromatografía Líquida de Alta Resolución Con la Utilización de Medios Micelares Como Extractantes: Desarrollo de Nuevos Métodos Analíticos 
Journal: Analytical and Bioanalytical Chemistry 
Conference: 13th International Symposium on Luminescence Spectrometry 
Abstract: A sensitive and useful method based on solid-phase microextraction with micellar desorption (SPME-MD) coupled to HPLC with fluorescence detection was developed for the determination of five fluoroquinolones (levofloxacin, norfloxacin, ciprofloxacin, enrofloxacin, and sarafloxacin) in environmental water matrices. The SPME extraction efficiency was optimized with regard to time, temperature, pH, and ionic strength using a CW-TPR fiber. A detailed study about the optimum conditions for micellar desorption (surfactant type, concentration, and desorption time) were made. Among different surfactants studied, Polyoxyethylene 10 lauryl ether showed the best responses to extract fluoroquinolones using SPME-MD. Relative standard deviations of the developed method were below 9%. Limits of detection and quantification were between 0.01–0.2 and 0.03–0.6 ng mL−1, respectively. The recoveries achieved for all five compounds were in the 81–116% range. The proposed method was compared using conventional desorbing agent as methanol. Finally, the SPME-MD methodology was applied to the determination of these target analytes in several environmental liquid samples, including seawater, groundwater, and wastewater samples with excellent results.
URI: http://hdl.handle.net/10553/47153
ISSN: 1618-2642
DOI: 10.1007/s00216-009-2629-8
Source: Analytical and Bioanalytical Chemistry [ISSN 1618-2642], v. 394, p. 927-935
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