Visualitza QFA_Articles per autoria "b20e2308-042a-4f2b-ade4-857f73468d65"
Ara mostrant els elements 1-20 d 74
-
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 ... -
An Initial Approach to the Presence of Pharmaceuticals in Wastewater from Hospitals in Colombia and Their Environmental Risk
Serna-Galvis, Efraim A.; Botero-Coy, Ana Maria; Rosero-Moreano, Milton; Lee, Judy; Hernandez, Felix; Torres-Palma, Ricardo A. MDPI (2022-03-18)Hospital wastewater (HWW) from three different cities in Colombia was characterized. Wastewater quality indicators and 38 relevant pharmaceuticals were examined. The HWW had pH from 6.82 to 8.06, chemical oxygen demand ... -
Analytical investigation of cannabis biomarkers in raw urban wastewater to refine consumption estimates
Campos-Mañas, Marina Celia; Van Wichelen, Natan; Covaci, Adrian; van Nuijs, Alexander; Ort, Christoph; Been, Frederic; Castiglioni, Sara; Hernandez, Felix; Bijlsma, Lubertus Elsevier (2022-08)Wastewater analysis of Δ9-tetrahydrocannabinol (THC) biomarkers can provide essential information on trends in cannabis consumption. Although analysis is mostly focused on the aqueous phase, previous studies have illustrated ... -
El análisis de aguas residuales con fines epidemiológicos: presente y futuro en España
Pocurull, Eva; Marcé, Rosa María; González-Mariño, Iria; Rodil, Rosario; Montes, Rosa; Estévez Danta, Andrea; Andreu, Vicente; Bijlsma, Lubertus; Celma, Alberto; Hernandez, Felix; López de Alda, Miren; López-García, Ester; Picó Gracia, Yolanda; Postigo, Cristina; Rico, Andreu; Valcárcel, Yolanda; Quintana, J.B. Asociación Española de Estudio en Drogodependencias, AESED (2020)El análisis de aguas residuales con fines epidemiológicos es actualmente una herramienta fiable y comple-mentaria a las metodologías basadas en indicadores tradicionales para el control de diferentes sustancias entre las ... -
Application of catalytic ozonation using Y zeolite in the elimination of pharmaceuticals in effluents from municipal wastewater treatment plants
Prada Vásquez, Maria Angélica; Simarro Gimeno, Claudia; Vidal Barreiro, Isabel; Cardona-Gallo, Santiago-Alonso; Pitarch, Elena; Hernandez, Felix; Torres-Palma, Ricardo A.; chica, antonio; Navarro-Laboulais, Javier Elsevier (2024)Catalytic ozonation using faujasite-type Y zeolite with two different SiO2/Al2O3 molar ratios (60 and 12) was evaluated for the first time in the removal of 25 pharmaceutical compounds (PhCs) present in real effluents from ... -
Application of multiple headspace-solid-phase microextraction followed by gas chromatography-mass spectrometry to quantitative analysis of tomato aroma components
Serrano, Elena; Beltran Arandes, Joaquin; Hernandez, Felix Elsevier (2009)The objective of this paper is to investigate the potential of multiple headspace-solid-phase microextraction (MHS-SPME) for the determination of volatile compounds in complex matrix samples. A method based on MHS-SPME for ... -
Application of ultra-high-pressure liquid chromatography-tandem mass spectrometry to the determination of multi-class pesticides in environmental and wastewater samples. Study of matrix effects
Marín Ramos, José Manuel; GRACIA LOR, EMMA; Sancho, Juan V; Lopez, Francisco; Hernandez, Felix Elsevier (2009)An ultra-high-pressure liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for the determination of 37 pesticides (herbicides, insecticides and fungicides) in environmental and wastewater has been developed. ... -
Bogota River anthropogenic contamination alters microbial communities and promotes spread of antibiotic resistance genes
Posada-Perlaza, Carlos Eduardo; Ramírez-Rojas, Adán; Porras, Paola; Adu-Oppong, Boahemaa; Botero-Coy, Ana Maria; Hernandez, Felix; Anzola, Juan; Díaz, Lorena; Dantas, Gautam; Reyes, Alejandro; Zambrano, Maria Mercedes Nature Research (2019)The increase in antibiotic resistant bacteria has raised global concern regarding the future effectiveness of antibiotics. Human activities that influence microbial communities and environmental resistomes can generate ... -
Characterization of a recently detected halogenated aminorex derivative: para-fluoro-4-methylaminorex (4′F-4-MAR)
Fabregat-Safont, David; Carbón, X.; Ventura, Mireia; Fornís, I.; Hernandez, Felix; Ibáñez, Maria Nature Research (2019)Despite the fact that 33% of the new psychoactive substances seized in 2015 were synthetic cathinones, the number of these derivatives has been decreasing in the last years, probably as a consequence of the unfavourable ... -
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 ... -
Comparative degradation of two highly consumed antihypertensives in water by sonochemical process. Determination of the reaction zone, primary degradation products and theoretical calculations on the oxidative process
Serna-Galvis, Efraim A.; Isaza-Pineda, Laura; Moncayo-Lasso, Alejandro; Hernandez, Felix; Ibáñez, Maria; Torres-Palma, Ricardo A. Elsevier (2019)This work compares the sonochemical degradation of losartan and valsartan (antihypertensives) in water. Initially, the suitable operational conditions of ultrasonic power density and frequency were established. Under such ... -
Comparison between triple quadrupole, time of flight and hybrid quadrupole time of flight analysers coupled to liquid chromatography for the detection of anabolic steroids in doping control analysis
Pozo, Óscar J.; Van Eenoo, Peter; Deventer, Koen; Elbardissy, Hisham; Grimalt Brea, Susana; Sancho, Juan V; Hernandez, Felix; Ventura, Rosa; Delbeke, Frans T. Elsevier (2011-01-17)Triple quadrupole (QqQ), time of flight (TOF) and quadrupole-time of flight (QTOF) analysers have been compared for the detection of anabolic steroids in human urine. Ten anabolic steroids were selected as model compounds ... -
Degradation of seventeen contaminants of emerging concern in municipal wastewater effluents by sonochemical advanced oxidation processes
Serna-Galvis, Efraim A.; Botero-Coy, Ana Maria; Martínez-Pachón, Diana; Moncayo-Lasso, Alejandro; Ibáñez, Maria; Hernandez, Felix; Torres-Palma, Ricardo A. Elsevier (2019)The simultaneous degradation of seventeen emerging concern pollutants in effluent from the municipal wastewater treatment plant (MWTP) of Bogotá-Colombia was studied using high frequency ultrasound (375 kHz). The considered ... -
Detection and Characterization of a New Metabolite of 17α-Methyltestosterone
Pozo, Óscar J.; Van Eenoo, Peter; Deventer, Koen; Lootens, Leens; Van Thuyne, Wim; Parr, Maria K.; Schänzer, Wilhelm; Sancho, Juan V; Hernandez, Felix; Meuleman, Philip; Leroux-Roels, Geert; Delbeke, Frans T. The American Society for Pharmacology and Experimental Therapeutics (2009-11)The misuse of the anabolic steroid methyltestosterone is currently routinely monitored in doping control laboratories by gas chromatography-mass spectrometry (GC-MS) of two of its metabolites: 17α-methyl-5β-androstane-3α,17β-diol ... -
Detection and structural investigation of metabolites of stanozolol in human urine by liquid chromatography tandem mass spectrometry
Pozo, Óscar J.; Van Eenoo, Peter; Deventer, Koen; Lootens, Leens; Grimalt Brea, Susana; Sancho, Juan V; Hernandez, Felix; Meuleman, Philip; Leroux-Roels, Geert; Delbeke, Frans T. Elsevier (2009)The applicability of LC-MS/MS in precursor ion scan mode for the detection of urinary stanozolol metabolites has been studied. The product ion at m/z 81 has been selected as specific for stanozolol metabolites without a ... -
Determination of eight nitrosamines in water at the ng L−1 levels by liquid chromatography coupled to atmospheric pressure chemical ionization tandem mass spectrometry
Ripollés Vidal, Cristina; Pitarch, Elena; Sancho, Juan V; Lopez, Francisco; Hernandez, Felix Elsevier (2011-09-19)In this work, we have developed a sensitive method for detection and quantification of eight N-nitrosamines, N-nitrosodimethylamine (NDMA), N-nitrosomorpholine (NMor), N-nitrosomethylethylamine (NMEA), N-nitrosopirrolidine ... -
Determination of melamine in milk-based products and other food and beverage products by ion-pair liquid chromatography-tandem mass spectrometry
Ibáñez, Maria; Sancho, Juan V; Hernandez, Felix Elsevier (2009)This paper describes a fast method for the sensitive and selective determination of melamine in a wide range of food matrices, including several milk-based products. The method involves an extraction with aqueous 1% ... -
Determination of methylisothiocyanate in soil and water by HS-SPME followed by GC-MS-MS with a triple quadrupole
Peruga Mínguez, Aránzazu; Beltran Arandes, Joaquin; Lopez, Francisco; Hernandez, Felix Springer (2014-09)Methylisothiocyanate (MITC) is the main degradation product of metam sodium, a soil disinfectant widely used in agriculture, and is responsible for its disinfectant properties. Because MITC is highly toxic and volatile, ... -
Determination of mycotoxins in different food commodities by ultra-high-pressure liquid chromatography coupled to triple quadrupole mass spectrometry
Beltrán Iturat, Eduardo; Ibáñez, Maria; Sancho, Juan V; Hernandez, Felix Wiley (2009)A rapid multianalyte-multiclass method with little sample manipulation has been developed for the simultaneous determination of eleven mycotoxins in different food commodities by using ultra-high-pressure liquid chromatography ...