کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1168607 | 1491162 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Alternative GC-MS approaches in the analysis of substituted pyrazines and other volatile aromatic compounds formed during Maillard reaction in potato chips
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
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 (GCÂ ÃÂ GC-TOFMS). Although in none of the tested systems full chromatographic resolution of some isomeric pairs could be achieved, the use of GCÂ ÃÂ 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 641, Issues 1â2, 8 May 2009, Pages 101-109
Journal: Analytica Chimica Acta - Volume 641, Issues 1â2, 8 May 2009, Pages 101-109
نویسندگان
Lenka Lojzova, Katerina Riddellova, Jana Hajslova, Jitka Zrostlikova, Jakub Schurek, Tomas Cajka,