US EPA

3515158 

Journal Article 

Determination of phthalate esters in distillates by ultrasound-vortex-assisted dispersive liquid-liquid micro-extraction (USVADLLME) coupled with gas chromatography/mass spectrometry 

Montevecchi, G; Masino, F; Zanasi, L; Antonelli, A 

2017 

Yes 

Food Chemistry
ISSN: 0308-8146
EISSN: 1873-7072 

ELSEVIER SCI LTD 

OXFORD 

221 

1354-1360 

English 

27979100 

10.1016/j.foodchem.2016.11.019 

WOS:000389909100172 

https://linkinghub.elsevier.com/retrieve/pii/S030881461631843X
Exit
 

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 160μL. 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. 

phthalate esters; ultrasound-vortex-assisted dispersive; liquid-liquid micro-extraction; gas chromatography-mass spectrometry; distillates; brandy