Listar por autoría "fa072a9c-80f2-4c24-8529-856a9681c626"
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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 ... -
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 ... -
Investigation of pesticide metabolites in food and water by LC-TOF-MS
Hernandez, Felix; Sancho, Juan V; Ibáñez, Maria; Grimalt Brea, Susana Elsevier (2008)We illustrate the potential of liquid chromatography with (quadrupole) time-of-flight mass spectrometry [LC-(Q)TOF-MS] in investigating the presence of pesticide metabolites in food and water samples. The higher polarity ... -
Optimisation and validation of a specific analytical method for the determination of thiram residues in fruits and vegetables by LC–MS/MS
Peruga Mínguez, Aránzazu; Grimalt Brea, Susana; Lopez, Francisco; Sancho, Juan V; Hernandez, Felix Elsevier (2012)Thiram is a non-systemic dithiocarbamate fungicide, which is easily degraded during sample preparation since it is affected by pH, matrix components and temperature. In this work, specific methodology for thiram analysis ... -
Quantification, confirmation and screening capability of UHPLC coupled to triple quadrupole and hybrid quadrupole time-of-flight mass spectrometry in pesticide residue analysis
Grimalt Brea, Susana; Sancho, Juan V; Pozo, Óscar J.; Hernandez, Felix John Wiley & Sons (2010-04)The potential of three mass spectrometry (MS) analyzers (triple quadrupole, QqQ; time of flight, TOF; and quadrupole time of flight, QTOF) has been investigated and compared for quantification, confirmation and screening ... -
Use of ultra-high-pressure liquid chromatography–quadrupole time-of-flight MS to discover the presence of pesticide metabolites in food samples
Hernandez, Felix; Grimalt Brea, Susana; Pozo, Óscar J.; Sancho, Juan V Wiley (2009)In this paper we illustrate the use of two different methodologies to investigate the presence of pesticide metabolites in parent pesticide-positive food samples, using ultra-high-pressure liquid chromatography coupled to ...