期刊
FOOD CHEMISTRY
卷 221, 期 -, 页码 1354-1360出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.11.019
关键词
Phthalate esters; Ultrasound-Vortex-Assisted Dispersive; Liquid-Liquid Micro-Extraction; Gas chromatography-Mass spectrometry; Distillates; Brandy
资金
- Emilia Romagna region Interventi a favore della ricerca industriale delle imprese operanti nelle filiere maggiormente coinvolte dagli eventi sismici del maggio
A method for the extraction of phthalate esters (PAEs) by Ultrasound-Vortex-Assisted Dispersive Liquid-Liquid Micro-Extraction (USVADLLME) approach was optimised and applied for the first time to a historical series of brandies. These contaminants are widely spread in the environment as a consequence of about half century of use in different fields of applications. The concern about these substances and the recent legal restrictions of China in distillates import need a quick and sensitive method for their quantification. The proposed method, moreover, is environmentally oriented due to the disposal of micro-quantities of solvent required. In fact, sub-ppm-limits of detection were achieved with a solvent volume as low as 160 mu L. The analysed samples were within the legal limits, except for some very ancient brandies whose contamination was probably due to a PAEs concentration effect as a consequence of long ageing and for the use of plastic pipelines no more operative. (C) 2016 Elsevier Ltd. All rights reserved.
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