RT Journal Article
T1 Use of flow injection atmospheric pressure photoionization quadrupole time-of-flight mass spectrometry for fast olive oil fingerprinting
A1 Gómez Ariza, José Luis
A1 Arias Borrego, Ana
A1 García Barrera, Tamara
AB The recently introduced technique of an atmospheric pressure photoionization (APPI) sourcecoupled to quadrupole time-of-flight mass spectrometry (QqTOFMS) has been applied to fast oliveoil fingerprinting on the basis of the accurate mass measurements obtained with this instrumentation.The key compounds can be characterized as [MRH]R (produced by proton transfer) or as [M]R.(by charge transfer) ions in the mass spectra. [MþH]þions, however, show higher abundance,especially for triacylglycerols. Other ions present in APPI-MS are the acylium ion [RiCO]þand[RiCO–H2O]þ. This latter ion is absent in the electrospray ionization (ESI)-MS spectra, and thisrepresents valuable complementary information. Several critical parameters in the APPI source wereoptimized such as LC eluent composition, ion spray voltage and, especially, declustering potential.APPI-QqTOFMS allows easy discrimination among different edible oils: olive, extra virgin olive,olive-pomace, hazelnut, sunflower, corn and several mixed oils, with high throughput (approximately1 min per sample). Cluster analysis was applied to obtain the best experimental conditions foroil discrimination on the basis of declustering potential. Principal components analyses of theseAPPI-MS spectra show that the approach can be used for studies of olive oil adulteration withother oils, even in the case of hazelnut oil that exhibits a high chemical similarity with olive oil.
YR 2006
FD 2006
LK https://hdl.handle.net/10272/22968
UL https://hdl.handle.net/10272/22968
LA eng
NO Gómez‐Ariza, J. L., Arias‐Borrego, A., & García‐Barrera, T. (2006). Use of flow injection atmospheric pressure photoionization quadrupole time‐of‐flight mass spectrometry for fast olive oil fingerprinting. In Rapid Communications in Mass Spectrometry (Vol. 20, Issue 8, pp. 1181–1186). Wiley. https://doi.org/10.1002/rcm.2432
NO The authors are indebted to ‘Ministerio de Ciencia y Tecnologı´a (MCyT)’ for the Grant REN2002-04366-C02-02. Wethank Applied Biosystems for technical assistance withAPPI-MS.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026