Publications by authors named "Tim Sobolevsky"

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Carbon Isotope Ratio Analysis of Urinary Steroids Following Extensive Cleanup and Formylation.
Tim Sobolevsky, Mustafa Cittan, Elizabeth Ahrens

Drug Test Anal· November 2025

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Long-Term Excretion of Roxadustat in Urine.
Tim Sobolevsky, Matthew Fedoruk, Frank Dellanna, Hans Geyer, Brian Ahrens

Drug Test Anal· July 2025

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Breaking Boundaries: Exploring Performance Enhancement and Anti-Doping Testing in Sports.
Imir G Metushi, Allison Wagner, Brian Ahrens, Magnus Ericsson, Olivier Rabin, Tim Sobolevsky

Clin Chem· July 2024

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Detection of selective androgen receptor modulator YK-11 in a doping control sample.
Tim Sobolevsky, Yulia Kucherova, Brian Ahrens

Drug Test Anal· June 2024

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Detection of capromorelin in urine following oral and dermal routes of administration.
Tim Sobolevsky, Katja Walpurgis, Christian Goergens, Matthew Fedoruk, Laura Lewis

Drug Test Anal· December 2023

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A Suspected Case of Carbon Monoxide Poisoning Consistent with Fentanyl Toxicity.
K H Brian Lam, Tim Sobolevsky, Brian Ahrens, Lu Song, Imir G Metushi

J Appl Lab Med· March 2023

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AICAr to SAICAr ratio can serve as additional marker of AICAr use.
Tim Sobolevsky, Thomas Piper, Brian Ahrens, Mario Thevis

Drug Test Anal· November 2022

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Biotin as a masking agent in chorionic gonadotropin assays utilizing biotinylated antibodies.
Tim Sobolevsky, Brian Ahrens

Drug Test Anal· November 2021

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Meldonium residues in milk: A possible scenario for inadvertent doping in sports?
Sven Guddat, Christian Görgens, Tim Sobolevsky, Mario Thevis

Drug Test Anal· November 2021

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Measurement of urinary cobalt as its complex with 2-(5-chloro-2-pyridylazo)-5-diethylaminophenol by liquid chromatography-tandem mass spectrometry for the purpose of anti-doping control.
Tim Sobolevsky, Brian Ahrens

Drug Test Anal· June 2021

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High-throughput liquid chromatography tandem mass spectrometry assay as initial testing procedure for analysis of total urinary fraction.
Tim Sobolevsky, Brian Ahrens

Drug Test Anal· February 2021

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Urinary concentrations of AICAR and mannitol in athlete population.
Tim Sobolevsky, Brian Ahrens

Drug Test Anal· March 2019

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Isotopically labeled boldenone as a better marker of derivatization efficiency for improved quality control in anti-doping analysis.
Tim Sobolevsky, Yulia Kucherova, Brian Ahrens

Drug Test Anal· February 2019

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Anti-doping analyses at the Sochi Olympic and Paralympic Games 2014.
Tim Sobolevsky, Grigory Krotov, Marina Dikunets, Maria Nikitina, Elena Mochalova

Drug Test Anal· August 2015

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Study on the phase I metabolism of novel synthetic cannabinoids, APICA and its fluorinated analogue.
Tim Sobolevsky, Ilya Prasolov, Grigory Rodchenkov

Drug Test Anal· February 2015

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Detection of PPARδ agonists GW1516 and GW0742 and their metabolites in human urine.
Tim Sobolevsky, Marina Dikunets, Irina Sukhanova, Edward Virus, Grigory Rodchenkov

Drug Test Anal· October 2012

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Detection of urinary metabolites of AM-2201 and UR-144, two novel synthetic cannabinoids.
Tim Sobolevsky, Ilya Prasolov, Grigory Rodchenkov

Drug Test Anal· October 2012

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Mass spectrometric description of novel oxymetholone and desoxymethyltestosterone metabolites identified in human urine and their importance for doping control.
Tim Sobolevsky, Grigory Rodchenkov

Drug Test Anal· September 2012

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Detection and mass spectrometric characterization of novel long-term dehydrochloromethyltestosterone metabolites in human urine.
Tim Sobolevsky, Grigory Rodchenkov

J Steroid Biochem Mol Biol· February 2012

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Sulbutiamine in sports.
Tim Sobolevsky, Grigory Rodchenkov

Drug Test Anal· May 2011

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Detection of JWH-018 metabolites in smoking mixture post-administration urine.
Tim Sobolevsky, Ilya Prasolov, Grigory Rodchenkov

Forensic Sci Int· July 2010

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Improving the accuracy of carbon-to-hydrogen ratio determination for P, N, S, O, Cl, and Br-containing organic compounds using atomic emission detection.
Elena S Chernetsova, Alexander I Revelsky, Dupont Durst, Tim G Sobolevsky, Igor A Revelsky

Anal Bioanal Chem· May 2005

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Increasing the accuracy of determination of nc/nH ratios by gas chromatography-atomic emission detection.
Elena S Chernetsova, Alexander I Revelsky, Dupont Durst, Tim G Sobolevsky, Igor A Revelsky

J Chromatogr A· April 2005

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Simultaneous determination of fatty, dicarboxylic and amino acids based on derivatization with isobutyl chloroformate followed by gas chromatography-positive ion chemical ionization mass spectrometry.
Tim G Sobolevsky, Alexander I Revelsky, Igor A Revelsky, Barbara Miller, Vincent Oriedo

J Chromatogr B Analyt Technol Biomed Life Sci· February 2004

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Electron ionization and atmospheric pressure photochemical ionization in gas chromatography-mass spectrometry analysis of amino acids.
Igor A Revelsky, Yuri S Yashin, Tim G Sobolevsky, Alexander I Revelsky, Barbara Miller

Eur J Mass Spectrom (Chichester)· January 2004

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