Characterization of the yerba mate (Ilex paraguariensis) volatile fraction using solid-phase microextraction-comprehensive 2-D GC-MS.
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.
Purcaro
Giorga
G
Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università di Messina, Messina, Italy.
Tranchida
Peter Q
PQ
Jacques
Rosângela Assis
RA
Caramão
Elina Bastos
EB
Moret
Sabrina
S
Conte
Lanfranco
L
Dugo
Paola
P
Dugo
Giovanni
G
Mondello
Luigi
L
D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D030017:Ilex / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D014835:Volatilization
D010936:Plant Extracts