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Author

Masato Okano

ORCID: 0000-0003-3614-4121
Observed ORCID: 0000-0003-3614-4121
OpenAlex ID: A5064882300
Analysis of exogenous dehydroepiandrosterone excretion in urine by gas chromatography/combustion/isotope ratio mass spectrometry
1999 · Makoto Ueki, Masato Okano · Rapid Communications in Mass Spectrometry · 79
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Determination of growth hormone secretagogue pralmorelin (GHRP‐2) and its metabolite in human urine by liquid chromatography/electrospray ionization tandem mass spectrometry
2010 · Masato Okano, Mitsuhiko Sato, et al. · Rapid Communications in Mass Spectrometry · 62
UDP‐glucuronosyltransferase 2B17 genotyping in Japanese athletes and evaluation of the current sports drug testing for detecting testosterone misuse
2012 · Masato Okano, Toshihiko Ueda, et al. · Drug Testing and Analysis · 44
Determination of higenamine and coclaurine levels in human urine after the administration of a throat lozenge containing Nandina domestica fruit
2017 · Masato Okano, Mitsuhiko Sato, et al. · Drug Testing and Analysis · 37
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Comparison of urine analysis and dried blood spot analysis for the detection of ephedrine and methylephedrine in doping control
2015 · Asami Kojima, Yasunori Nishitani, et al. · Drug Testing and Analysis · 35
Influence of intravenous administration of growth hormone releasing peptide‐2 (GHRP‐2) on detection of growth hormone doping: growth hormone isoform profiles in Japanese male subjects
2010 · Masato Okano, Yasunori Nishitani, et al. · Drug Testing and Analysis · 33
Doping control analyses during the Tokyo 2020 Olympic and Paralympic Games
2022 · Masato Okano, Ayako Ikekita, et al. · Drug Testing and Analysis · 25
Simultaneous detection of testosterone, nandrolone, and boldenone esters in dried blood spots for doping control in sports by liquid chromatography–tandem mass spectrometry
2024 · Asami Miyamoto, Masanori Ota, et al. · Drug Testing and Analysis · 21
Doping control analysis of trimetazidine in dried blood spot
2022 · Masato Okano, Asami Miyamoto, et al. · Drug Testing and Analysis · 18
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Doping control of biosimilar epoetin kappa and other recombinant erythropoietins after intravenous application
2011 · Masato Okano, Mitsuhiko Sato, et al. · Drug Testing and Analysis · 18
Identification of the long-acting erythropoiesis-stimulating agent darbepoetin alfa in human urine by liquid chromatography–tandem mass spectrometry
2013 · Masato Okano, Mitsuhiko Sato, et al. · Analytical and Bioanalytical Chemistry · 17
Analysis of non‐ketoic steroids 17α‐methylepithiostanol and desoxymethyl‐ testosterone in dietary supplements
2009 · Masato Okano, Mitsuhiko Sato, et al. · Drug Testing and Analysis · 17
Chromatographic‐mass spectrometric analysis of the urinary metabolite profile of chlorphenesin observed after dermal application of chlorphenesin‐containing sunscreen
2021 · Ana Rubio, Christian Görgens, et al. · Rapid Communications in Mass Spectrometry · 15
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Analytical detection of trimetazidine produced by metabolic conversion of lomerizine in doping control analysis
2015 · Masato Okano, Mario Thevis, et al. · Drug Testing and Analysis · 15
Lomerizine, trimetazidine and bis‐(4‐fluorophenyl)‐methylpiperazine in human urine after oral administration of lomerizine dihydrochloride: analysis by liquid chromatography‐high resolution‐tandem mass spectrometry
2018 · Masato Okano, Mitsuhiko Sato, et al. · Drug Testing and Analysis · 13
Doping with naturally occurring steroids
1999 · Makoto Ueki, Masato Okano · Journal of Toxicology Toxin Reviews · 13
Possibility of analytical finding of glycerol caused by self‐catheterization in doping control
2014 · Masato Okano, Yasunori Nishitani, et al. · Drug Testing and Analysis · 10
Analysis of Methyltestosterone and Testosterone Propionate in Dried Blood Spots After Transdermal Application
2025 · Asami Miyamoto, Masato Okano, et al. · Drug Testing and Analysis · 8
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Detection of bazedoxifene, a selective estrogen receptor modulator, in human urine by liquid chromatography‐tandem mass spectrometry
2022 · Masato Okano, Mitsuhiko Sato, et al. · Drug Testing and Analysis · 8
Mass spectrometric characterisation of darbepoetin alfa biosimilars with C‐terminal arginine residues
2016 · Masato Okano, Mitsuhiko Sato, et al. · Drug Testing and Analysis · 8
Effectiveness of blood steroidal passport markers for detecting testosterone abuse in Asians
2023 · Masato Okano, Sho Shiomura · Drug Testing and Analysis · 7
Effects of intravenous infusion of glycerol on blood parameters and urinary glycerol concentrations
2016 · Masato Okano, Yasunori Nishitani, et al. · Forensic Science International · 7
Determination of mepitiostane metabolites in human urine by liquid chromatography/tandem mass spectrometry for sports drug testing
2015 · Masato Okano, Mitsuhiko Sato, et al. · Journal of Pharmaceutical and Biomedical Analysis · 7
Detection of the GH analogue somatrogon in doping control urine samples by means of LC-HRMS/MS
2025 · Katja Walpurgis, Andreas Thomas, et al. · Scientific Reports · 6
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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
2024 · Sergi Coll, Sho Shiomura, et al. · Drug Testing and Analysis · 6
Works count: 36
Citation count: 562
H-index: 14
I10-index: 17
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