Rapid fingerprinting and classification of extra virgin olive oil by microjet sampling and extractive electrospray ionization mass spectrometry

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Author(s) Law, Wai Siang, Chen, Huan Wen, Balabin, Roman, Berchtold, Christian, Meier, Lukas, Zenobi, Renato
Publication Type Journal Items, Publication Status: Published
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Title Rapid fingerprinting and classification of extra virgin olive oil by microjet sampling and extractive electrospray ionization mass spectrometry
Author(s) Law, Wai Siang
Chen, Huan Wen
Balabin, Roman
Berchtold, Christian
Meier, Lukas
Zenobi, Renato
Journal or Series Title The analyst
Volume Number 135
Issue Number 4
Start Page 773
End Page 778
ISSN 0003-2654
1364-5528
Publisher The Royal Society of Chemistry
Publication Place Cambridge
Publication Date 2010
Abstract Microjet sampling in combination with extractive electrospray ionization (EESI) mass spectrometry (MS) was applied to the rapid characterization and classification of extra virgin olive oil (EVOO) without any sample pretreatment. When modifying the composition of the primary ESI spray solvent, mass spectra of an identical EVOO sample showed differences. This demonstrates the capability of this technique to extract molecules with varying polarities, hence generating rich molecular information of the EVOO. Moreover, with the aid of microjet sampling, compounds of different volatilities (e.g. E-2-hexenal, trans-trans-2,4-heptadienal, tyrosol and caffeic acid) could be sampled simultaneously. EVOO data was also compared with that of other edible oils. Principal Component Analysis (PCA) was performed to discriminate EVOO and EVOO adulterated with edible oils. Microjet sampling EESI-MS was found to be a simple, rapid (less than 2 min analysis time per sample) and powerful method to obtain MS fingerprints of EVOO without requiring any complicated sample pretreatment steps.
DOI 10.1039/b924156f
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03430
Organisational Unit(s)
NEBIS System Number 000023536
Source Database ID WOS-000275865100018
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@article{Lw2010,
  author = "Law, Wai Siang and Chen, Huan Wen and Balabin, Roman and Berchtold, Christian and Meier, Lukas and Zenobi, Renato",
  title = "{R}apid fingerprinting and classification of extra virgin olive oil by microjet sampling and extractive electrospray ionization mass spectrometry",
  journal = "The analyst",
  year = 2010,
  volume = "135",
  number = "4",
  pages = "773--778",
}


E-Citations record created: Tue, 20 Apr 2010, 08:52:51 CET