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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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EL
| URI | http://purl.tuc.gr/dl/dias/7A9D007C-92A0-4CED-8247-6DB570D57F1C | - |
| Identifier | https://doi.org/10.1016/j.talanta.2009.06.015 | - |
| Language | en | - |
| Extent | 10 pages | en |
| Title | Ultrasound assisted emulsification microextraction of phenolic preservatives in water | en |
| Creator | Elefteria Psillakis | en |
| Creator | Juan C. Garcia-Monteagudo | en |
| Creator | Maria Llomparta | en |
| Creator | Jorge Regueiro | en |
| Creator | Carmen Garcia-Jaresa | en |
| Publisher | Elsevier | en |
| Content Summary | Simultaneous 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 Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-09-24 | - |
| Date of Publication | 2009 | - |
| Bibliographic Citation | J.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.2009.06.015 | en |
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