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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-
Αναγνωριστικόhttps://doi.org/10.1016/j.talanta.2009.06.015-
Γλώσσαen-
Μέγεθος10 pagesen
ΤίτλοςUltrasound assisted emulsification microextraction of phenolic preservatives in wateren
ΔημιουργόςElefteria Psillakisen
ΔημιουργόςJuan C. Garcia-Monteagudoen
ΔημιουργόςMaria Llompartaen
ΔημιουργόςJorge Regueiroen
ΔημιουργόςCarmen Garcia-Jaresaen
ΕκδότηςElsevieren
ΠερίληψηSimultaneous 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
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-09-24-
Ημερομηνία Δημοσίευσης2009-
Βιβλιογραφική ΑναφοράJ.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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