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Characterization of the yerba mate ( Ilex paraguariensis ) volatile fraction using solid‐phase microextraction‐comprehensive 2‐D GC‐MS
Author(s) -
Purcaro Giorga,
Tranchida Peter Q.,
Jacques Rosângela Assis,
Caramão Elina Bastos,
Moret Sabrina,
Conte Lanfranco,
Dugo Paola,
Dugo Giovanni,
Mondello Luigi
Publication year - 2009
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200900343
Subject(s) - chemistry , solid phase microextraction , chromatography , mass spectrometry , gas chromatography–mass spectrometry , plasticizer , fraction (chemistry) , gas chromatography , analytical chemistry (journal) , kovats retention index , organic chemistry
The present research is focused on the use of a solid‐phase microextraction‐comprehensive 2‐D GC methodology, in the analysis of the volatile fraction of yerba mate. Yerba mate is used for the generation of a tea‐like beverage, widely consumed in South America. A rapid‐scanning quadrupole mass spectrometer (qMS), employed as a detection system and operated at a 25 Hz scanning frequency, supplied high‐quality mass spectra. The effectiveness of the 3‐D comprehensive 2‐D GC‐qMS experiment was compared to that of GC‐qMS analysis on the same sample. Peak identification, in both applications, was achieved through MS library matching, with the support of linear retention index data. Apart from a great increase in the number of analytes separated (approx. by a factor of 5) and identified (approx. by a factor of 3.5), the comprehensive 2‐D GC‐qMS approach enabled the determination of a high number of hazardous contaminants (aliphatic hydrocarbons, polycyclic aromatic hydrocarbons, and plasticizers), barely visible in the GC‐qMS analysis.