Visualitza QFA_Articles per autoria "80983f77-4f17-49be-b11b-adcfc2baa075"
Ara mostrant els elements 1-13 d 13
-
A reliable analytical approach based on gas chromatography coupled to triple quadrupole and time-of-flight mass analyzers for the determination and confirmation of polycyclic aromatic hydrocarbons in complex matrices from aquaculture activities
Nácher Mestre, Jaime; Serrano, Roque; Portoles, Tania; Hernandez, Felix; Benedito Palos, Laura; Pérez Sánchez, Jaume Wiley-Blackwell (2009)The potential of gas chromatography coupled to tandem mass spectrometry (GC/MS/MS) with a triple quadrupole analyzer (QqQ) has been investigated for the quantification and reliable identi- fication of sixteen polycyclic ... -
Chromatography hyphenated to high resolution mass spectrometry in untargeted metabolomics for investigation of food (bio)markers
Lacalle-Bergeron, Leticia; Izquierdo-Sandoval, David; Sancho, Juan V; López, Francisco; Hernandez, Felix; Portoles, Tania Elsevier (2021-02-01)Currently, there is a growing demand by our society, authorities and science to increase the knowledge about the quality of food and its relationship with health and disease. Untargeted metabolomics approaches are emerging ... -
Combined Use of GC-TOF MS and UHPLC-(Q)TOF MS To Investigate the Presence of Nontarget Pollutants and Their Metabolites in a Case of Honeybee Poisoning
Portoles, Tania; Ibáñez, Maria; Sancho, Juan V; Lopez, Francisco; Hernandez, Felix American Chemical Society (2009)The combined use of gas chromatography (GC) and ultrahigh-pressure liquid chromatography (UHPLC), both coupled to time-of-flight mass spectrometry (TOF MS), has been explored in this work for the investigation of several ... -
Determination of very long-chain polyunsaturated fatty acids from 24 to 44 carbons in eye, brain and gonads of wild and cultured gilthead sea bream (Sparus aurata)
Serrano, Roque; Navarro, Juan C.; Sales Martinez, Carlos; Portoles, Tania; Monroig, Oscar; Beltran Arandes, Joaquin; Hernandez, Felix Nature Research (2022)Very long-chain (> C24) polyunsaturated fatty acids (VLC-PUFA) play an important role in the development of nervous system, retinal function and reproductive processes in vertebrates. Their presence in very small amounts ... -
Fast gas chromatographic residue analysis in animal feed using split injection and atmospheric pressure chemical ionisation tandem mass spectrometry
Tienstra, M.; Portoles, Tania; Hernandez, Felix; Mol, Johannes G. J. Elsevier (2015-11)Significant speed improvement for instrumental runtime would make GC–MS much more attractive for determination of pesticides and contaminants and as complementary technique to LC–MS. This was the trigger to develop a fast ... -
Gas chromatography-mass spectrometry based untargeted volatolomics for smoked seafood classification
Lacalle-Bergeron, Leticia; Portoles, Tania; Sales Martínez, Carlos; Corell, María Carmen; Domínguez, Fernando; Beltran Arandes, Joaquin; Sancho, Juan V; Hernandez, Felix Elsevier (2020-11)With the increase of the demand of low flavouring smoked seafood products, there is a need of methodologies able to distinguish between different seafood treatments, as not all of them are allowed in all markers. Following ... -
GC-MS/MS multi-residue method for the determination of organochlorine pesticides, polychlorinated biphenyls and polybrominated diphenyl ethers in human breast tissues
Medina, Cecilia; Pitarch, Elena; Portoles, Tania; Lopez, Francisco; Hernandez, Felix Wiley (2009)In this work, a multiresidue method for the quantification and confirmation of around 30 organohalogenated compounds in human breast tissue samples has been developed. Analytes tested included organochlorine (OC) (pesticides ... -
High resolution mass spectrometry-based screening for the comprehensive investigation of organic micropollutants in surface water and wastewater from Pasto city, Colombian Andean highlands
Hernandez, Felix; Ibáñez, María; Portoles, Tania; Hidalgo-Troya, Arsenio; Ramírez, Juan David; Paredes, Manuela Alejandra; Hidalgo, Andrés Fernando; García, Ana María; Galeano, Luis Alejandro Elsevier (2024)The complexity of the aquatic environment scenario, including the impact of urban wastewater, together with the huge number of potential hazardous compounds that may be present in waters, makes the comprehensive characterization ... -
Multi-class determination of undesirables in aquaculture samples by gas chromatography/tandem mass spectrometry with atmospheric pressure chemical ionization: A novel approach for polycyclic aromatic hydrocarbons
Portoles, Tania; Garlito Molina, Borja; Nácher Mestre, Jaime; Berntssen, Marc H. G.; Pérez Sánchez, Jaume Elsevier (2017)In this work, a method for the analysis of 24 PAHs in 19 different matrices, including fish tissues, feeds and feed ingredients, has been developed using gas chromatography coupled to triple quadrupole tandem mass ... -
Non-target screening of organic contaminants in marine salts by gas chromatography coupled to high-resolution time-of-flight mass spectrometry
Serrano, Roque; Nácher Mestre, Jaime; Portoles, Tania; Hernandez, Felix Elsevier (2011-08-15)Gas chromatography coupled to time-of-flight mass spectrometry (GC–TOF MS) has been applied to characterize the organic pollution pattern of marine salt samples collected in saltworks from the Spanish Mediterranean coast. ... -
Raw milk composition and sanitary quality after summer in semi-arid region
Allouche, Lynda; Hamadouche, Mohamed; Portoles, Tania; Madani, Toufik Schlütersche Verlagsgesellschaft (2021)The purpose of the present study was to evaluate physicochemical characteristics, milk coagulation properties and microbiological contents afterward the hot season to understand the impacts on raw milk quality. Fifty milk ... -
Screening of Pesticides and Polycyclic Aromatic Hydrocarbons in Feeds and Fish Tissues by Gas Chromatography Coupled to High-Resolution Mass Spectrometry Using Atmospheric Pressure Chemical Ionization
Nácher Mestre, Jaime; Serrano, Roque; Portoles, Tania; Berntssen, Marc H. G.; Pérez Sánchez, Jaume; Hernandez, Felix American Chemical Society (2014-02)This paper reports a wide-scope screening for detection and identification of pesticides and polycyclic aromatic hydrocarbons (PAHs) in feeds and fish tissues. QuEChERS sample treatment was applied, using freezing as an ... -
Searching for anthropogenic contaminants in human breast adipose tissues using gas chromatography-time-of-flight mass spectrometry
Hernandez, Felix; Portoles, Tania; Pitarch, Elena; Lopez, Francisco John Wiley & Sons (2008-12)The potential of GC-TOF MS for screening anthropogenic organic contaminants in human breast adipose tissues has been investigated. Initially a target screening was performed for a list of 125 compounds which included ...