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List of works by Oscar J. Pozo

1-50 of 190 results

Simultaneous determination of multiple phytohormones in plant extracts by liquid chromatography-electrospray tandem mass spectrometry

scientific article

Efficient approach for the comprehensive detection of unknown anabolic steroids and metabolites in human urine by liquid chromatography-electrospray-tandem mass spectrometry

scientific article published on 26 January 2008

Use of LC-MS/MS for the open detection of steroid metabolites conjugated with glucuronic acid

scientific article

Critical review of the application of liquid chromatography/mass spectrometry to the determination of pesticide residues in biological samples.

scientific article

Use of quadrupole time-of-flight mass spectrometry in the elucidation of unknown compounds present in environmental water

scientific article

Collision-induced dissociation of 3-keto anabolic steroids and related compounds after electrospray ionization. Considerations for structural elucidation.

scientific article published in December 2008

Ionization of anabolic steroids by adduct formation in liquid chromatography electrospray mass spectrometry

scientific article

uPA+/+-SCID mouse with humanized liver as a model for in vivo metabolism of exogenous steroids: methandienone as a case study

scientific article published on 30 July 2009

Detection and structural investigation of metabolites of stanozolol in human urine by liquid chromatography tandem mass spectrometry

scientific article

Efficient approach for the reliable quantification and confirmation of antibiotics in water using on-line solid-phase extraction liquid chromatography/tandem mass spectrometry.

scientific article published on 23 November 2005

Residue determination of glyphosate, glufosinate and aminomethylphosphonic acid in water and soil samples by liquid chromatography coupled to electrospray tandem mass spectrometry

scientific article published in July 2005

The even-electron rule in electrospray mass spectra of pesticides.

scientific article published in January 2007

Circadian variation of melatonin, light exposure, and diurnal preference in day and night shift workers of both sexes

scientific article published on 8 May 2014

Multiresidue liquid chromatography tandem mass spectrometry determination of 52 non gas chromatography-amenable pesticides and metabolites in different food commodities.

scientific article published on 30 January 2006

Direct quantification of steroid glucuronides in human urine by liquid chromatography-electrospray tandem mass spectrometry

scientific article published on 26 January 2008

Rapid direct determination of pesticides and metabolites in environmental water samples at sub-microg/l level by on-line solid-phase extraction-liquid chromatography-electrospray tandem mass spectrometry.

scientific article published in December 2001

A new sulphate metabolite as a long-term marker of metandienone misuse

scientific article

Direct analysis of abscisic acid in crude plant extracts by liquid chromatography--electrospray/tandem mass spectrometry

scientific article published in July 2002

Maternal separation induces neuroinflammation and long-lasting emotional alterations in mice.

scientific article

Evaluation of different scan methods for the urinary detection of corticosteroid metabolites by liquid chromatography tandem mass spectrometry

scientific article published in June 2009

Testosterone metabolism revisited: discovery of new metabolites

scientific article published on 15 August 2010

Development and validation of a qualitative screening method for the detection of exogenous anabolic steroids in urine by liquid chromatography-tandem mass spectrometry

scientific article published on 28 August 2007

Mass spectrometric evaluation of mephedrone in vivo human metabolism: identification of phase I and phase II metabolites, including a novel succinyl conjugate

scientific article published on 02 December 2014

Direct determination of alkyl phosphates in human urine by liquid chromatography/electrospray tandem mass spectrometry

scientific article

Study of matrix effects on the direct trace analysis of acidic pesticides in water using various liquid chromatographic modes coupled to tandem mass spectrometric detection.

scientific article

Increased and mistimed sex hormone production in night shift workers

scientific article published on 3 March 2015

New potential markers for the detection of boldenone misuse

scientific article published on 02 June 2012

Alternative long-term markers for the detection of methyltestosterone misuse

scientific article published on 02 November 2012

Use of liquid chromatography coupled to quadrupole time-of-flight mass spectrometry to investigate pesticide residues in fruits.

scientific article published on 20 February 2007

Discrimination of prohibited oral use from authorized inhaled treatment of budesonide in sports.

scientific article

Detection and characterization of a new metabolite of 17alpha-methyltestosterone

scientific article published on 24 August 2009

Detection of dihydrotestosterone gel, oral dehydroepiandrosterone, and testosterone gel misuse through the quantification of testosterone metabolites released after alkaline treatment

scientific article published on 13 October 2011

Screening for anabolic steroids in sports: analytical strategy based on the detection of phase I and phase II intact urinary metabolites by liquid chromatography tandem mass spectrometry.

scientific article published on 16 February 2015

Combination of liquid-chromatography tandem mass spectrometry in different scan modes with human and chimeric mouse urine for the study of steroid metabolism

scientific article published in November 2009

Derivatization of Steroids in Biological Samples for GC–MS and LC–MS Analyses

scientific article published on October 19, 2015

Urinary profile of methylprednisolone and its metabolites after oral and topical administrations

scientific article published on 20 June 2013

Steroid metabolism in chimeric mice with humanized liver

scientific article

Qualitative detection of diuretics and acidic metabolites of other doping agents in human urine by high-performance liquid chromatography-tandem mass spectrometry: comparison between liquid-liquid extraction and direct injection

scientific article published on 7 June 2009

Use of quadrupole time-of-flight mass spectrometry in environmental analysis: elucidation of transformation products of triazine herbicides in water after UV exposure

scientific article published in March 2004

Investigation of endogenous corticosteroids profiles in human urine based on liquid chromatography tandem mass spectrometry

scientific article published on 03 January 2014

Analytical strategy to investigate 3,4-methylenedioxypyrovalerone (MDPV) metabolites in consumers' urine by high-resolution mass spectrometry.

scientific article published on 17 October 2015

Determination of the herbicide 4-chloro-2-methylphenoxyacetic acid and its main metabolite, 4-chloro-2-methylphenol in water and soil by liquid chromatography-electrospray tandem mass spectrometry

scientific article published in July 2001

Mass spectrometric behavior of anabolic androgenic steroids using gas chromatography coupled to atmospheric pressure chemical ionization source. Part I: ionization.

scientific article

Detection and characterization of clostebol sulfate metabolites in Caucasian population

scientific article published on 21 March 2016

Quantitative detection of inhaled formoterol in human urine and relevance to doping control analysis

scientific article published on 22 March 2012

Use of ultra-high-pressure liquid chromatography-quadrupole time-of-flight MS to discover the presence of pesticide metabolites in food samples

scientific article

Elucidation of urinary metabolites of fluoxymesterone by liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry

scientific article published in March 2008

Development and validation of an LC-MS/MS method for the quantification of ephedrines in urine

scientific article published on 24 December 2008

Different quantitation approaches for xenobiotics in human urine samples by liquid chromatography/electrospray tandem mass spectrometry.

scientific article published in January 2002

Evaluation of urinary excretion of androgens conjugated to cysteine in human pregnancy by mass spectrometry

scientific article published on 11 February 2013