Article (Scientific journals)
Detailed elucidation of hydrocarbon contamination in food products by using solid-phase extraction and comprehensive gas chromatography with dual detection
Purcaro, Giorgia; Tranchida, P. Q.; Barp, L. et al.
2013In Analytica Chimica Acta, 773, p. 97-104
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Keywords :
Comprehensive gas chromatography; GC×GC; Mineral oil; Mineral oil aromatic hydrocarbons (MOAH); Mineral oil saturated hydrocarbons (MOSH); Comprehensive two-dimensional gas chromatography; Hydrocarbon contamination; Large volume injection; Mass spectrometric data; Mineral oil saturated hydrocarbon (MOSH); Simultaneous identification; Solid-phase extraction; Food products; Gas chromatography; Mass spectrometers; Mineral oils; Phase separation; Silica; Vegetable oils; Extraction; Chromatography, Gas; Fatty Acids; Food Analysis; Hydrocarbons; Mass Spectrometry; Plant Oils; Silver Nitrate; Solid Phase Extraction
Abstract :
[en] The present work is focused on the development/optimization of a comprehensive two-dimensional gas chromatography method, with dual detection [flame ionization (FID) and mass spectrometric], for the simultaneous identification and quantification of mineral-oil contaminants in a variety of food products. The two main classes of contaminants, namely saturated and aromatic hydrocarbons, were previously fractionated on a manually-packed silver silica solid-phase extraction (SPE) cartridge. The quantitative results were compared with those obtained by performing a large volume injection, in a GC-FID system, after the same SPE process and by an on-line liquid-gas chromatography method, with very similar results observed. The presence of a series of unknown compounds, that appeared when using the off-line methods, was investigated using the mass spectrometric data, and were tentatively-identified as esterified fatty acids, most probably derived from vegetable oil based ink. © 2013 Elsevier B.V.
Disciplines :
Chemistry
Food science
Author, co-author :
Purcaro, Giorgia  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes
Tranchida, P. Q.;  Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università degli Studi di Messina, viale Annunziata, 98168 Messina, Italy
Barp, L.;  Dipartimento di Scienze degli Alimenti, University of Udine, via Sondrio 2/A, 33100 Udine, Italy
Moret, S.;  Dipartimento di Scienze degli Alimenti, University of Udine, via Sondrio 2/A, 33100 Udine, Italy
Conte, L. S.;  Dipartimento di Scienze degli Alimenti, University of Udine, via Sondrio 2/A, 33100 Udine, Italy
Mondello, L.;  Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università degli Studi di Messina, viale Annunziata, 98168 Messina, Italy, Centro Integrato di Ricerca (C.I.R.), Università Campus-Biomedico, Via Álvaro del Portillo, 21, 00128 Roma, Italy
Language :
English
Title :
Detailed elucidation of hydrocarbon contamination in food products by using solid-phase extraction and comprehensive gas chromatography with dual detection
Publication date :
2013
Journal title :
Analytica Chimica Acta
ISSN :
0003-2670
eISSN :
1873-4324
Publisher :
Elsevier, Netherlands
Volume :
773
Pages :
97-104
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
MIUR - Ministero dell'Istruzione, dell'Università e della Ricerca [IT]
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