World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
46
Citations
6454
World Ranking
16178
National Ranking
894

Alan A. Herod 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 Alan A. Herod 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: 187 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

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

Alan A. Herod 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 Alan A. Herod 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: 46 D-Index — 12th percentile

12% of scientists in this discipline score the same or lower.

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

Overview

Alan A. Herod is affiliated with Imperial College London in the United Kingdom. Their research spans primary fields such as Social Sciences and Health Professions, with particular focus on subfields including Sociology and Political Science, as well as General Health Professions.

Their main research topics include Intergenerational Family Dynamics and Caregiving, along with Health and Wellbeing Research. These themes are reflected in both their publications and collaborative work.

Recent publications by Alan A. Herod feature work in peer-reviewed journals. One notable paper is titled "Parental involvement and life satisfaction in alcohol-dependent and non-alcohol-dependent fathers", published in 2024 in the journal Alcoholism and Drug Addiction.

Their frequent coauthors comprise Marzanna Farnická and Magdalena Kolańska. These collaborations contribute to their research outputs and indicate active engagement in multidisciplinary projects.

Key publication venues include:

  • Alcoholism and Drug Addiction

Frequent coauthors include:

  • Marzanna Farnická
  • Magdalena Kolańska

Their research interests and outputs demonstrate a focus on social and health dimensions concerning family relationships and wellbeing. The integration of sociological and health professions perspectives shapes their contributions to academic literature.

Best Publications

  • Characterization of Heavy Hydrocarbons by Chromatographic and Mass Spectrometric Methods: An Overview

    Alan A. Herod;and Keith D. Bartle;Rafael Kandiyoti

  • Characterization of Asphaltenes from Hydrotreated Products by SEC, LDMS, MALDI, NMR, and XRD

    F. Trejo;J. Ancheyta;T. J. Morgan;and A. A. Herod

  • A two-stage fixed-bed reactor for direct hydrotreatment of volatiles from the hydropyrolysis of biomass: effect of catalyst temperature, pressure and catalyst ageing time on product characteristics

    R.V Pindoria;A Megaritis;A.A Herod;R Kandiyoti

  • Determination of 17 trace elements in coal and ash reference materials by ICP-MS applied to milligram sample sizes

    H. Lachas;R. Richaud;A. A. Herod;D. R. Dugwell

  • Solubility limitations in the determination of molecular mass distributions of coal liquefaction and hydrocracking products : 1-methyl-2-pyrrolidinone as mobile phase in size exclusion chromatography

    Alan A. Herod;Sheng-Fu Zhang;Barry R. Johnson;and Keith D. Bartle

  • Structural characterization of biomass pyrolysis tars/oils from eucalyptus wood waste : effect of H2 pressure and sample configuration

    Ramesh V. Pindoria;Jin-Yee Lim;Janet E. Hawkes;Maria-Jesus Lazaro

  • Bimolecular reactions of ions trapped in an electron space charge

    A.A. Herod;A.G. Harrison

  • Fractionation by planar chromatography of a coal tar pitch for characterisation by size-exclusion chromatography, UV fluorescence and direct-probe mass spectrometry

    Alan A. Herod;Rafael Kandiyoti

  • Molecular mass distributions and structural characterisation of coal derived liquids

    A.A. Herod;M.-J. Lazaro;M. Domin;C.A. Islas

  • The characterisation of tars produced during the gasification of sewage sludge in a spouted bed reactor

    A Adegoroye;N Paterson;X Li;T Morgan

  • The Calibration of Size Exclusion Chromatography Columns: Molecular Mass Distributions of Heavy Hydrocarbon Liquids

    Fatma Karaca;Carlos A. Islas;Marcos Millan;Mahtab Behrouzi

  • Analytical Methods for Characterizing High-Mass Complex Polydisperse Hydrocarbon Mixtures: An Overview

    A. A. Herod;K. D. Bartle;T. J. Morgan;R. Kandiyoti

  • Investigation of nitrogen compounds in coal tar products. 2. Basic fractions

    Paul Burchill;Alan A. Herod;Pritchard Ernest

  • Characterization of Molecular Mass Ranges of Two Coal Tar Distillate Fractions (Creosote and Anthracene Oils) and Aromatic Standards by LD-MS, GC-MS, Probe-MS and Size-exclusion Chromatography

    T. J. Morgan;A. George;P. Álvarez;M. Millan

  • Molecular mass determinations in coal-derived liquids by MALDI mass spectrometry and size-exclusion chromatography

    Maria-Jesus Lázaro;Alan A. Herod;Mike Cocksedge;Mark Domin

  • Effect of LiBr Addition to 1-Methyl-2-pyrrolidinone in the Size-Exclusion Chromatography of Coal-Derived Materials

    A. A. Herod;J. Shearman;M.-J. Lazaro;B. R. Johnson

  • Probing Size Exclusion Mechanisms of Complex Hydrocarbon Mixtures: The Effect of Altering Eluent Compositions

    Stephanie Paul-Dauphin;Fatma Karaca;Trevor J. Morgan;Marcos Millan-Agorio

  • On the Limitations of UV−Fluorescence Spectroscopy in the Detection of High-Mass Hydrocarbon Molecules

    Trevor J. Morgan;Marcos Millan;Mahtab Behrouzi;and Alan A. Herod

  • The characterisation of tar from the pyrolysis of animal bones

    B Purevsuren;B Avid;T Gerelmaa;Ya Davaajav

  • Size Exclusion Chromatography of Soots and Coal-Derived Materials with 1-Methyl-2-pyrrolidinone as Eluent: Observations on High Molecular Mass Material

    A. A. Herod;M.-J. Lazaro;I. Suelves;C. Dubau

  • A Comparative Study of Bitumen Molecular-Weight Distributions

    M. Domin;Alan Herod;Rafael Kandiyoti;John W. Larsen

  • Calibration of Size Exclusion Chromatography in 1-Methyl-2-pyrrolidinone for Coal-Derived Materials Using Standards and Mass Spectrometry

    M. J. Lazaro;C. A. Islas;and A. A. Herod;R. Kandiyoti

Frequent Co-Authors

Rafael Kandiyoti
Rafael Kandiyoti Imperial College London
Marcos Millan
Marcos Millan King Fahd University of Petroleum and Minerals
Chun-Zhu Li
Chun-Zhu Li Curtin University
M.J. Lázaro
M.J. Lázaro Spanish National Research Council
Isabel Suelves
Isabel Suelves Spanish National Research Council
George Davey Smith
George Davey Smith University of Bristol
Robert V. Law
Robert V. Law Imperial College London
Sergei G. Kazarian
Sergei G. Kazarian Imperial College London

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