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Ultrasound assisted emulsification microextraction of phenolic preservatives in water

Elefteria Psillakis, Juan C. Garcia-Monteagudo, Maria Llomparta, Jorge Regueiro, Carmen Garcia-Jaresa

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URIhttp://purl.tuc.gr/dl/dias/7A9D007C-92A0-4CED-8247-6DB570D57F1C-
Identifierhttps://doi.org/10.1016/j.talanta.2009.06.015-
Languageen-
Extent10 pagesen
TitleUltrasound assisted emulsification microextraction of phenolic preservatives in wateren
CreatorElefteria Psillakisen
CreatorJuan C. Garcia-Monteagudoen
CreatorMaria Llompartaen
CreatorJorge Regueiroen
CreatorCarmen Garcia-Jaresaen
PublisherElsevieren
Content SummarySimultaneous ultrasound-assisted emulsification–microextraction (USAEME) and derivatization combined with gas chromatography–tandem mass spectrometry (GC–MS/MS) is proposed for the first time for the analysis of parabens, triclosan and related phenols in water samples. In situ acetylation was successfully applied for the derivatization of target compounds with high efficiency using non-expensive reagents. The proposed method exhibits many advantages such as simplicity, efficiency, low cost, and minimum solvent consumption. In addition, the whole analytical process, including sample preparation and determination, is performed in only 20 min. A multifactorial experimental design was employed to study and optimize the main variables potentially affecting the microextraction and derivatization processes (extraction solvent, phase ratio, sodium chloride concentration, extraction time, and acetic anhydride volume). The performance of the method was studied in terms of accuracy, linearity, precision, and enrichment factor. Quantitative recoveries (≥85%)were obtained for all target compounds, and method precisionwas also satisfactory (RSD≤13%) even for complex samples. Enrichment factors ranging from 100 to 200were obtained, allowing achieving limits of detection at the low picogram per millilitre for most of the target compounds.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-09-24-
Date of Publication2009-
Bibliographic CitationJ.Regueiro , M.Llomparta, .E. Psillakis , J. C. G.Monteagudo , C. G.Jaresa , "Ultrasound assisted emulsification microextraction of phenolic preservatives in water " ,Talan,vol. 79, no.9 ,pp. 1387–1397 ,2009.doi: 10.1016/j.talanta.2009.06.015en

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