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Anal Chim Acta

Title:		Alternative GC-MS approaches in the analysis of substituted pyrazines and other volatile aromatic compounds formed during Maillard reaction in potato chips
Author(s):		Lojzova L; Riddellova K; Hajslova J; Zrostlikova J; Schurek J; Cajka T;
Address:		"Institute of Chemical Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Chemistry and Analysis, Technicka 3, 166 28 Prague 6, Czech Republic"
Journal Title:		Anal Chim Acta
Year:		2009
Volume:		20090331
Issue:		1-Feb
Page Number:		101 - 109
DOI:		10.1016/j.aca.2009.03.036
ISSN/ISBN:		1873-4324 (Electronic) 0003-2670 (Linking)
Abstract:		"Several methods have been developed for the analysis of substituted pyrazines and related substances in potato chips. Following separation/detection approaches (all employing head-space solid phase microextraction, HS-SPME, for volatiles sampling), have been critically assessed in our study: (i) gas chromatography-ion trap mass spectrometry (GC-ITMS), (ii) gas chromatography-time-of-flight mass spectrometry (GC-TOFMS); (iii) comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC x GC-TOFMS). Although in none of the tested systems full chromatographic resolution of some isomeric pairs could be achieved, the use of GC x GC-TOFMS offered the best solution, mainly because of distinctly lower limits of quantification (LOQs) for all of 13 target alkylpyrazines. In addition to good performance characteristics, a non-target screening and tentative identification of altogether 46 N-containing heterocyclic compounds (pyrazines, pyrrols, pyridines, pyrrolidinones, and tetrahydropyridines) was also enabled"
Keywords:		Food Analysis/*methods Gas Chromatography-Mass Spectrometry/*methods Maillard Reaction Organic Chemicals/analysis/isolation & purification Pyrazines/*analysis/isolation & purification Reproducibility of Results Solid Phase Microextraction Volatilization;
Notes:		"MedlineLojzova, Lenka Riddellova, Katerina Hajslova, Jana Zrostlikova, Jitka Schurek, Jakub Cajka, Tomas eng Research Support, Non-U.S. Gov't Netherlands 2009/04/28 Anal Chim Acta. 2009 May 8; 641(1-2):101-9. doi: 10.1016/j.aca.2009.03.036. Epub 2009 Mar 31"