Listar IUPA_Articles por autoría "453755c6-3bc0-4069-9e28-5cf6382d0abf"
Mostrando ítems 21-40 de 111
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Critical evaluation of a simple retention time predictor based on LogKow as a complementary tool in the identification of emerging contaminants in water
Bade, Richard; Bijlsma, Lubertus; Sancho, Juan V; Hernandez, Felix Elsevier (2015)There has been great interest in environmental analytical chemistry in developing screening methods based on liquid chromatography–high resolution mass spectrometry (LC–HRMS) for emerging contaminants. Using HRMS, compound ... -
Current use of high-resolution mass spectrometry in the environmental sciences
Hernandez, Felix; Sancho, Juan V; Ibáñez, Maria; Portoles, Tania; Abad, Esteban; Mattioli, Laura Springer (2012-05)During the last two decades, mass spectrometry (MS) has been increasingly used in the environmental sciences with the objective of investigating the presence of organic pollutants. MS has been widely coupled with chromatographic ... -
Determination of 17b-estradiol and 17a-ethinylestradiol in water at sub-ppt levels by liquid chromatography coupled to tandem mass spectrometry
Ripollés Vidal, Cristina; Ibáñez, Maria; Sancho, Juan V; Lopez, Francisco; Hernandez, Felix Royal Society of Chemistry (2014-06)Steroid estrogens are a group of endocrine disrupting compounds (EDCs) excreted in human urine mainly as glucuronide or sulfate conjugates, which might be converted back into the free estrogens in water. The natural estrogen ... -
Determination of patulin in apple and derived products by UHPLC-MS/MS. Study of matrix effects with atmospheric pressure ionisation sources.
Beltrán Iturat, Eduardo; Ibáñez, Maria; Sancho, Juan V; Hernandez, Felix Elsevier (2014)Sensitive and reliable analytical methodology has been developed for the measurement of patulin in regulated foodstuffs by using ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC–MS/MS) ... -
Determination of selected endogenous anabolic androgenic steroids and ratios in urine by ultra high performance liquid chromatography tandem mass spectrometry and isotope pattern deconvolution
Pitarch-Motellón, Jorge; Sancho, Juan V; Ibáñez, Maria; Pozo, Óscar J.; Roig-Navarro, Antoni F. Elsevier (2017-09)An isotope dilution mass spectrometry (IDMS) method for the determination of selected endogenous anabolic androgenic steroids (EAAS) in urine by UHPLC–MS/MS has been developed using the isotope pattern deconvolution (IPD) ... -
Determination of six microcystins and nodularin in surface and drinking waters by on-line solid phase extraction–ultra high pressure liquid chromatography tandem mass spectrometry
Beltrán Iturat, Eduardo; Ibáñez, Maria; Sancho, Juan V; Hernandez, Felix Elsevier (2012)Microcystins and nodularin are cyclic peptides hepatotoxins produced by cyanobacterial genera (blue-green algae). Toxic cyanobacterial blooms are a worldwide problem, as reported in several countries, like China, Australia, ... -
Development and validation of a liquid chromatography isotope dilution mass spectrometry method for the reliable quantificationof alkylphenols in environmental water samples by isotopepattern deconvolution
Fabregat-Cabello, Neus; Sancho, Juan V; Vidal-Albalat, Andreu; González, Florenci; Roig-Navarro, Antoni F. Copyright © 2015 Elsevier (2014-02-07)We present here a new measurement method for the rapid extraction and accurate quantification of technical nonylphenol (NP) and 4-t-octylphenol (OP) in complex matrix water samples by UHPLC-ESI-MS/MS. The extraction of ... -
Development of a fast analytical method for the individual determination of pyrethrins residues in fruits and vegetables by liquid chromatography–tandem mass spectrometry
Peruga Mínguez, Aránzazu; Hidalgo, Carmen; Sancho, Juan V; Hernandez, Felix Elsevier (2013-09)Pyrethrins are natural insecticides derived from chrysanthemum flowers containing a mixture of six components: pyrethrin I, cinerin I, jasmolin I, pyrethrin II, cinerin II, and jasmolin II. In this work, a rapid and sensitive ... -
Development of a Retention Time Interpolation scale (RTi) for liquid chromatography coupled to mass spectrometry in both positive and negative ionization modes
Celma, Alberto; Bijlsma, Lubertus; Lopez, Francisco; Sancho, Juan V Elsevier (2018-07)The accuracy and sensitivity of high resolution mass spectrometry (HRMS) enables the identification of candidate compounds with the use of mass spectrometric databases among other tools. However, retention time (RT) data ... -
Development of a simple and low-cost prototype probe fully-compatible with atmospheric solids analysis probe for the analysis of human breath in real-time
Fabregat-Safont, David; Ibañez Martinez, Maria; Hernandez, Felix; Sancho, Juan V Elsevier (2021-12-16)The analysis in real-time of the exhaled breath has gained great attention in the last years due to the high number of possible applications, such as the investigation of endogenous compounds, the detection of disease ... -
Development of sensitive and rapid analytical methodology for food analysis of 18 mycotoxins included in a total diet study
Beltrán Iturat, Eduardo; Ibáñez, Maria; Portoles, Tania; Ripollés Vidal, Cristina; Sancho, Juan V; Yusà, Vicent; Marín, Silvia; Hernandez, Felix Elsevier (2013)A rapid and sensitive method for the determination of 18 mycotoxins in 24 different food matrices has been developed and validated. With the exception of beverages and oil samples, a simple extraction with acetonitrile:water ... -
Direct and Fast Screening of New Psychoactive Substances Using Medical Swabs and Atmospheric Solids Analysis Probe Triple Quadrupole with Data-Dependent Acquisition
Fabregat-Safont, David; Felis-Brittes, Daniela; Mata-Pesquera, Maria; Sancho, Juan V; Hernandez, Felix; Ibáñez, Maria American Chemical Society (2020-05-28)New psychoactive substances (NPS) have become a serious public health problem, as they are continuously changing their structures and modifying their potency and effects on humans, and therefore, novel compounds are ... -
Direct liquid chromatography–tandem mass spectrometry determination of underivatized glyphosate in rice, maize and soybean
Botero-Coy, Ana Maria; Ibáñez, Maria; Sancho, Juan V; Hernandez, Felix Elsevier (2013-10)The residue determination of the widely used herbicide glyphosate (GLY) is highly problematic due to its amphoteric character, low mass and lack of chemical groups that might facilitate its detection. Most methods developed ... -
Effects of structural characteristics of (un)conjugated steroid metabolites in their collision cross section value
Bressan, Claudia; Celma, Alberto; Alechaga Silva, Élida; Monfort, Nuria; Ventura, Rosa; Sancho, Juan V Elsevier (2023-05-08)In this work, the collision cross section (CCS) value of 103 steroids (including unconjugated metabolites and phase II metabolites conjugated with sulfate and glucuronide groups) was determined by liquid chromatography ... -
Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile–water medium
Ornelas Dávila, Omar; Lacalle-Bergeron, Leticia; Ruiz Gutiérrez, P.; Dávila-Jiménez, Martín M.; Sirés Sadornil, Ignacio; Brillas, Enric; Roig-Navarro, Antoni F.; Beltran Arandes, Joaquin; Sancho, Juan V Elsevier (2019-05-23)The electrochemical oxidation of dibenzothiophene and two derivatives, namely 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene, was investigated either separately or as a mixture, on a BDD anode in a miscible ... -
Enhancing spectral quality in complex environmental matrices: Supporting suspect and non-target screening in zebra mussels with ion mobility
Menger, Frank; Celma, Alberto; Schymanski, Emma; Lai, Foon Yin; Bijlsma, Lubertus; Wiberg, Karin; Hernandez, Felix; Sancho, Juan V; Ahrens, Lutz Elsevier (2022-10-14)Identification of bioaccumulating contaminants of emerging concern (CECs) via suspect and non-target screening remains a challenging task. In this study, ion mobility separation with high-resolution mass spectrometry ... -
Evaluation of uncertainty sources in the determination of testosterone in urine by calibration-based and isotope dilution quantification using ultra high performance liquid chromatography tandem mass spectrometry
Pitarch-Motellón, Jorge; Roig-Navarro, Antoni F.; Sancho, Juan V; Ibáñez, Maria; Fabregat-Cabello, Neus; Pozo, Óscar J.; Ventura, Rosa; García Alonso, J. Ignacio; Rodríguez González, Pablo; González Gago, Adriana; Ereño Artabe, Amaia; Van Eenoo, Peter; Deventer, Koen; Dehnes, Yvette; Rzeppa, Sebastian Elsevier (2017-06)Three quantification methodologies, namely calibration with internal standard (Cal-IS, non-weighted), weighted calibration with internal standard (wCal-IS) and isotope pattern deconvolution (IPD) have been used for the ... -
Exploring matrix effects in liquid chromatography–tandem mass spectrometry determination of pesticide residues in tropical fruits
Botero-Coy, Ana Maria; Marín Ramos, José Manuel; Serrano, Roque; Sancho, Juan V (2015-12-17)Tropical fruits are being increasingly consumed around the world because of their appreciated characteristics, particularly their high nutritional value and distinctive taste, which are different from those of traditional ... -
Facilitating high resolution mass spectrometry data processing for screening of environmental water samples: An evaluation of two deconvolution tools
Bade, Richard; Causanilles, Ana; Emke, Erik; Bijlsma, Lubertus; Sancho, Juan V; Hernandez, Felix; de Voogt, Pim Elsevier (2016)A screening approach was applied to influent and effluent wastewater samples. After injection in a LC-LTQ-Orbitrap, data analysis was performed using two deconvolution tools, MsXelerator (modules MPeaks and MS Compare) and ... -
Fast determination of 40 drugs in water using large volume direct injection liquid chromatography–tandem mass spectrometry
Boix Sales, Clara; Ibáñez, Maria; Sancho, Juan V; Rambla, Javier; Aranda Mares, José Luis; Ballester, Salomé; Hernandez, Felix Elsevier (2015)This work describes a rapid analytical method based on direct sample injection of water samples for the simultaneous identification/quantification of 40 emerging compounds, including pharmaceuticals and drugs of abuse. The ...