HURTADO FERNÁNDEZ, ELENA, Pacchiarotta, Tiziana , Longueira-Suarez, Enrique , Mayboroda, Oleg A. , Fernandez-Gutierrez, Alberto , Carrasco-Pancorbo, Alegria
Si
J. Chromatogr. A
Article
Científica
4.258
2.006
25/10/2013
000325673200022
Although GC-APCI-MS was developed more than 40 years ago this coupling is still far from being a routine technique. One of the reasons explaining the limited use of GC-APCI so far is the lack of spectral database which facilitates the identification of the compounds under study. The first application of a very recently developed GC-APCI database to identify as many compounds as possible in a complex matrix such as avocado fruit is presented here. The results achieved by using this database has been checked against those obtained using traditional GC-El-MS and a comparison of the MS signals observed in both ionization sources has been carried out. 100 compounds belonging to different chemical families were identified in the matrix under study. Considering the results of this study, the wide range of application (in terms of polarity and size of analytes) and the robustness of APCI as interface, the high quality of TOF spectra, and our library as a publicly available resource, GC-APCI-TOF MS is definitively a valuable addition to the "metabolomics toolbox". (c) 2013 Elsevier B.V. All rights reserved.
Atmospheric pressure chemical ionization; Avocado; Electron ionization; Gas chromatography; Mass spectrometry; Metabolomics