Publications by authors named "Elida Alechaga"

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Synbiotic intervention reverses alcohol drinking-induced cognitive deficits in adolescent male mice by modulating the microbiota-gut-brain axis.
Marta Barrera-Conde, Elizaveta Korchevaya, Elk Kossatz, Emma Veza, Mitona Pujadas, Élida Alechaga

Gut Microbes· December 2025

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Detection of Oral Testosterone Undecanoate Administration in UGT2B17 del/del and del/ins Individuals. Part I: Urinary Steroid Profile and IRMS Markers.
Sergi Coll, Sho Shiomura, Élida Alechaga, Claudia Bressan, Núria Monfort

Drug Test Anal· August 2025

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Detection of Oral Testosterone Undecanoate Administration in UGT2B17 del/del and del/ins Individuals. Part II: Urinary Endogenous Steroid Sulfate Markers.
Sergi Coll, Sho Shiomura, Élida Alechaga, Claudia Bressan, Núria Monfort

Drug Test Anal· August 2025

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Towards the non-invasive determination of estradiol levels: Development and validation of an LC-MS/MS assay for quantification of salivary estradiol at sub-pg/mL level.
David Fabregat-Safont, Élida Alechaga, Noemí Haro, Àlex Gomez-Gomez, Eric R Velasco

Anal Chim Acta· December 2024

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Evaluation of sulfate metabolites as markers of topical testosterone administration in Caucasian and Asian populations.
Claudia Bressan, Élida Alechaga, Nuria Monfort, Rosa Ventura

Drug Test Anal· September 2024

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Achieving routine application of dried blood spots for erythropoietin receptor agonist analysis in doping control: low-volume single-spot detection at minimum required performance level.
Lídia Requena-Tutusaus, Indira Anselmo, Élida Alechaga, Rosa Bergés, Rosa Ventura

Bioanalysis· October 2023

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Effects of structural characteristics of (un)conjugated steroid metabolites in their collision cross section value.
Claudia Bressan, Alberto Celma, Élida Alechaga, Nuria Monfort, Rosa Ventura

Anal Chim Acta· May 2023

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Potential of desorption electrospray ionization and paper spray ionization with high-resolution mass spectrometry for the screening of sports doping agents in urine.
Claudia Bressan, Raquel Seró, Élida Alechaga, Nuria Monfort, Encarnación Moyano

Anal Methods· January 2023

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Elimination profiles of prednisone and prednisolone after different administration routes: Evaluation of the reporting level and washout periods to ensure safe therapeutic administrations.
Sergi Coll, Núria Monfort, Élida Alechaga, Xavier Matabosch, Oscar J Pozo

Drug Test Anal· March 2021

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Elimination profiles of betamethasone after different administration routes: Evaluation of the reporting level and washout periods to ensure safe therapeutic administrations.
Sergi Coll, Núria Monfort, Élida Alechaga, Xavier Matabosch, Clara Pérez-Mañá

Drug Test Anal· February 2021

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Analysis of hydroxylated phenylalkylamine stimulants in urine by GC-APPI-HRMS.
Claudia Bressan, Juan F Ayala-Cabrera, Francisco Javier Santos, Susana Cuadras, Lorena Garrostas, Élida Alechaga

Anal Bioanal Chem· November 2020

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Comparison of magnetic bead surface functionalities for the immunopurification of growth hormone-releasing hormones prior to liquid chromatography-high resolution mass spectrometry.
Laura Pont, Élida Alechaga, Alejandro Terrero, Núria Monfort, Rosa Ventura

J Chromatogr A· November 2020

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Additional studies on triamcinolone acetonide use and misuse in sports: Elimination profile after intranasal and high-dose intramuscular administrations.
Sergi Coll, Núria Monfort, Élida Alechaga, Xavier Matabosch, Clara Pérez-Mañá

Steroids· November 2019

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Evaluation of sulfate metabolites as markers of intramuscular testosterone administration in Caucasian and Asian populations.
Argitxu Esquivel, Élida Alechaga, Nuria Monfort, Sheng Yang, Yanyi Xing

Drug Test Anal· August 2019

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Sulfate metabolites improve retrospectivity after oral testosterone administration.
Argitxu Esquivel, Élida Alechaga, Nuria Monfort, Rosa Ventura

Drug Test Anal· March 2019

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Direct quantitation of endogenous steroid sulfates in human urine by liquid chromatography-electrospray tandem mass spectrometry.
Argitxu Esquivel, Élida Alechaga, Núria Monfort, Rosa Ventura

Drug Test Anal· November 2018

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Structure of the DNA duplex d(ATTAAT)2 with Hoogsteen hydrogen bonds.
Francisco J Acosta-Reyes, Elida Alechaga, Juan A Subirana, J Lourdes Campos

PLoS One· February 2016

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Ion-molecule adduct formation in tandem mass spectrometry.
Élida Alechaga, Encarnación Moyano, Maria Teresa Galceran

Anal Bioanal Chem· February 2016

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Wide-range screening of psychoactive substances by FIA-HRMS: identification strategies.
Élida Alechaga, Encarnación Moyano, Maria Teresa Galceran

Anal Bioanal Chem· June 2015

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Determination of polyphenolic profiles by liquid chromatography-electrospray-tandem mass spectrometry for the authentication of fruit extracts.
Lidia Puigventós, Meritxell Navarro, Élida Alechaga, Oscar Núñez, Javier Saurina

Anal Bioanal Chem· January 2015

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Survey of the occurrence of pharmaceuticals in Spanish finished drinking waters.
M Rosa Boleda, Elida Alechaga, Encarnación Moyano, M Teresa Galceran, Francesc Ventura

Environ Sci Pollut Res Int· September 2014

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Mixed-mode liquid chromatography coupled to tandem mass spectrometry for the analysis of aminoglycosides in meat.
Élida Alechaga, Encarnación Moyano, M Teresa Galceran

Anal Bioanal Chem· August 2014

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Atmospheric pressure ionization-tandem mass spectrometry of the phenicol drug family.
Élida Alechaga, Encarnación Moyano, M Teresa Galceran

J Mass Spectrom· November 2013

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Ultra-high performance liquid chromatography-tandem mass spectrometry for the analysis of phenicol drugs and florfenicol-amine in foods.
Élida Alechaga, Encarnación Moyano, M Teresa Galceran

Analyst· May 2012

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Overview of the structure of all-AT oligonucleotides: organization in helices and packing interactions.
Lourdes Campos, Núria Valls, Lourdes Urpí, Catherine Gouyette, Trinidad Sanmartín, Elida Alechaga

Biophys J· August 2006

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