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Front Cover: Investigating aroma diversity combining purge‐and‐trap, comprehensive two‐dimensional gas chromatography, and mass spectrometry
Author(s) -
Franchina Flavio Antonio,
Zanella Delphine,
Lazzari Eliane,
Stefanuto PierreHugues,
Focant JeanFrançois
Publication year - 2020
Publication title -
journal of separation science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.202070091
Subject(s) - chromatography , mass spectrometry , chemistry , analyte , two dimensional gas , gas chromatography , analytical chemistry (journal) , aroma , time of flight mass spectrometry , front cover , chemometrics , cover (algebra) , ion , food science , organic chemistry , ionization , mechanical engineering , engineering
DOI: 10.1002/jssc.201900902 The cover picture shows the analytical workflow the authors used for the detailed aroma analysis of beers. The sample preparation step involved purge‐and‐trap, with analyte pre‐concentration in adsorption tubes. These were thermally desorbed in a (low‐)flow modulated comprehensive two‐dimensional gas chromatography system (GC×GC) coupled to time‐of‐flight mass spectrometry (ToF MS). Because of the high‐density information, multivariate tools (correlation analysis, HCA, PCA) were exploited for the final untargeted and unsupervised data analysis. The chemical structures represents some of the unique compounds related to the fruit beer type.