Browsing Institut Universitari de Plaguicides i Aigües (IUPA) by Author "8e8dd1c6-8598-435e-bbb0-11f2082fb3d6"
Now showing items 1-6 of 6
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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 ... -
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 ... -
Mass spectrometric behavior of anabolic androgenic steroids using gas chromatography coupled to atmospheric pressure chemical ionization source. Part I: Ionization
Raro Macián, Montserrat; Portoles, Tania; Sancho, Juan V; Pitarch, Elena; Hernandez, Felix; Marcos, Josep; Ventura, Rosa; Gómez, C.; Segura, Jordi; Pozo, Óscar J. John Wiley & Sons (2014-05)The detection of anabolic androgenic steroids (AAS) is one of the most important topics in doping control analysis. Gas chromatography coupled to (tandem) mass spectrometry (GC–MS(/MS)) with electron ionization and liquid ... -
Mass spectrometric characterisation of acondensation product betweenporphobilinogen and indolyl-3-acryloylglycinein urine of patients with acuteintermittent porphyria
Ibáñez, Maria; Marcos, Josep; Ventura, Rosa; Segura, Jordi; Pozo, Óscar J.; To-Figueras, Jordi Wiley (2015-07)We document the presence of a previously unknown species in the urine of patients with acute intermittent porphyria (AIP). Thecompound was fully characterised by liquid chromatography tandem mass spectrometry. Interpretation ... -
Potential of atmospheric pressure chemical ionization source in gas chromatography tandem mass spectrometry for the screening of urinary exogenous androgenic anabolic steroids
Raro Macián, Montserrat; Portoles, Tania; Pitarch, Elena; Sancho, Juan V; Hernandez, Felix; Garrostas, L.; Marcos, Josep; Ventura, Rosa; Segura, Jordi; Pozo, Óscar J. Elsevier (2016-02-04)The atmospheric pressure chemical ionization (APCI) source for gas chromatography-mass spectrometry analysis has been evaluated for the screening of 16 exogenous androgenic anabolic steroids (AAS) in urine. The sample ... -
Untargeted Metabolomics in Doping Control: Detection of New Markers of Testosterone Misuse by Ultrahigh Performance Liquid Chromatography Coupled to High-Resolution Mass Spectrometry
Raro Macián, Montserrat; Ibáñez, Maria; Gil Solsona, Ruben; Fabregat, Andreu; Tudela, Eva; Deventer, Koen; Ventura, Rosa; Segura, Jordi; Marcos, Josep; Kotronoulas, Aristotelis; Joglar, Jesús; Farré, Magi; Yang, Sheng; Xing, Yanyi; Van Eenoo, Peter; Pitarch, Elena; Hernandez, Felix; Sancho, Juan V; Pozo, Óscar J. American Chemical Society (2015)The use of untargeted metabolomics for the discovery of markers is a promising and virtually unexplored tool in the doping control field. Hybrid quadrupole time-of- flight (QTOF) and hybrid quadrupole Orbitrap (Q ...