World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
50
Citations
8928
World Ranking
14379
National Ranking
1056

Hans Geyer publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Hans Geyer sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 153 publications — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Hans Geyer D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Hans Geyer sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 50 D-Index — 21st percentile

21% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Hans Geyer is affiliated with the German Sport University Cologne in Germany. Their research work spans multiple fields, with a significant focus on medicine and biochemistry, genetics, and molecular biology. The scientist's main subfields include endocrinology, diabetes and metabolism, cell biology, genetics, sociology and political science, and animal science and zoology.

Their research topics cover areas such as hormonal and reproductive studies, muscle metabolism and nutrition, doping in sports, pharmacological effects and assays, high altitude and hypoxia, sports performance and training, and metabolomics and mass spectrometry studies.

Among their recent publications are the following papers:

  • UEFA expert group statement on nutrition in elite football. Current evidence to inform practical recommendations and guide future research, 2020, British Journal of Sports Medicine
  • Dietary Supplement and Food Contaminations and Their Implications for Doping Controls, 2020, Foods
  • Sports drug testing and the athletes' exposome, 2021, Drug Testing and Analysis
  • Can dried blood spots (DBS) contribute to conducting comprehensive SARS-CoV-2 antibody tests?, 2020, Drug Testing and Analysis
  • Do dried blood spots (DBS) have the potential to support result management processes in routine sports drug testing?, 2020, Drug Testing and Analysis

Frequent publication venues for Hans Geyer include:

  • Drug Testing and Analysis
  • British Journal of Sports Medicine
  • Analytical and Bioanalytical Chemistry
  • Rapid Communications in Mass Spectrometry
  • Analytical Science Advances

Hans Geyer has collaborated often with other researchers, including:

  • Mario Thevis
  • Andreas Thomas
  • Tiia Kuuranne
  • André Knoop

Best Publications

  • Dietary Supplement Use among Elite Young German Athletes

    Hans A. Braun;Karsten Koehler;Hans Geyer;Jens Kleinert

  • Analysis of non-hormonal nutritional supplements for anabolic-androgenic steroids - results of an international study.

    H. Geyer;M. K. Parr;U. Mareck;U. Reinhart

  • Nutritional supplements cross-contaminated and faked with doping substances

    Hans Geyer;Maria Kristina Parr;Karsten Koehler;Ute Mareck

  • Factors influencing the steroid profile in doping control analysis

    Ute Mareck;Hans Geyer;Georg Opfermann;Mario Thevis

  • Sensitive determination of prohibited drugs in dried blood spots (DBS) for doping controls by means of a benchtop quadrupole/Orbitrap mass spectrometer.

    Andreas Thomas;Hans Geyer;Wilhelm Schänzer;Catharina Crone

  • Determination of 13C/12C ratios of endogenous urinary steroids: method validation, reference population and application to doping control purposes.

    Thomas Piper;Ute Mareck;Hans Geyer;Ulrich Flenker

  • Long-term detection and identification of metandienone and stanozolol abuse in athletes by gas chromatography-high-resolution mass spectrometry

    Wilhelm Schänzer;Philippe Delahaut;Hans Geyer;Mark Machnik

  • Screening for unknown synthetic steroids in human urine by liquid chromatography-tandem mass spectrometry.

    Mario Thevis;Hans Geyer;Ute Mareck;Wilhelm Schänzer

  • Annual banned‐substance review: Analytical approaches in human sports drug testing

    Mario Thevis;Tiia Kuuranne;Hans Geyer;Wilhelm Schänzer

  • Reference ranges for urinary concentrations and ratios of endogenous steroids, which can be used as markers for steroid misuse, in a Caucasian population of athletes.

    Pieter Van Renterghem;Peter Van Eenoo;Hans Geyer;Wilhelm Schänzer

  • Anabolic agents: recent strategies for their detection and protection from inadvertent doping

    Hans Geyer;Wilhelm Schänzer;Mario Thevis

  • Mass spectrometric identification and characterization of a new long-term metabolite of metandienone in human urine.

    Wilhelm Schänzer;Hans Geyer;Gregor Fußhöller;Natalia Halatcheva

  • Confiscated black market products and nutritional supplements with non-approved ingredients analyzed in the cologne doping control laboratory 2009

    Maxie Kohler;Andreas Thomas;Hans Geyer;Michael Petrou

  • Sports drug testing using complementary matrices: Advantages and limitations

    Mario Thevis;Hans Geyer;Laura Tretzel;Wilhelm Schänzer

  • Metabolism of metandienone in man: Identification and synthesis of conjugated excreted urinary metabolites, determination of excretion rates and gas chromatographic-mass spectrometric identification of bis-hydroxylated metabolites

    W. Schänzer;H. Geyer;M. Donike

  • High‐throughput screening for various classes of doping agents using a new ‘dilute‐and‐shoot’ liquid chromatography‐tandem mass spectrometry multi‐target approach

    S. Guddat;E. Solymos;A. Orlovius;A. Orlovius;A. Thomas

  • Determination of growth hormone releasing peptides (GHRP) and their major metabolites in human urine for doping controls by means of liquid chromatography mass spectrometry

    Andreas Thomas;Sebastian Höppner;Hans Geyer;Wilhelm Schänzer

  • Analysis of Confiscated Black Market Drugs Using Chromatographic and Mass Spectrometric Approaches

    Mario Thevis;Yvonne Schrader;Andreas Thomas;Gerd Sigmund

  • Mass spectrometric determination of gonadotrophin-releasing hormone (GnRH) in human urine for doping control purposes by means of LC-ESI-MS/MS.

    Andreas Thomas;Hans Geyer;Matthias Kamber;Wilhelm Schänzer

  • Serum testosterone and urinary excretion of steroid hormone metabolites after administration of a high-dose zinc supplement

    K Koehler;M K Parr;H Geyer;J Mester

  • Detection of dihydrotestosterone (DHT) doping: alterations in the steroid profile and reference ranges for DHT and its 5 alpha-metabolites.

    M Donike;M Ueki;Y Kuroda;H Geyer

Frequent Co-Authors

Mario Thevis
Mario Thevis German Sport University Cologne
Wilhelm Schänzer
Wilhelm Schänzer German Sport University Cologne
Jordi Segura
Jordi Segura Pompeu Fabra University
Jiri Dvorak
Jiri Dvorak Schulthess Clinic
Ronald J. Maughan
Ronald J. Maughan University of St Andrews
Louise M. Burke
Louise M. Burke Australian Catholic University
Stuart M. Phillips
Stuart M. Phillips McMaster University
Tim Meyer
Tim Meyer University College London
Asker E. Jeukendrup
Asker E. Jeukendrup Loughborough University
Lawrence E. Armstrong
Lawrence E. Armstrong University of Connecticut

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