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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Chemistry 129 347 155 849 62894

Alan G. Marshall publications per year

The chart shows the history of publications by Alan G. Marshall between 1961 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Alan G. Marshall published across 65 years, from 1961 to 2025, averaging 17.5 papers a year. Output peaked at 48 publications in 2010. 7 of the 1,139 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1961 to 2025. Vertical axis: number of publications, 0 to 48. Peak 48 publications in 2010. 1961: 1 publication 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 1 publication 1966: 2 publications 1967: 0 publications 1968: 2 publications 1969: 0 publications 1970: 4 publications 1971: 4 publications 1972: 7 publications 1973: 14 publications 1974: 9 publications 1975: 7 publications 1976: 2 publications 1977: 4 publications 1978: 8 publications 1979: 7 publications 1980: 18 publications 1981: 7 publications 1982: 12 publications 1983: 8 publications 1984: 10 publications 1985: 16 publications 1986: 18 publications 1987: 13 publications 1988: 13 publications 1989: 9 publications 1990: 26 publications 1991: 17 publications 1992: 15 publications 1993: 30 publications 1994: 25 publications 1995: 16 publications 1996: 20 publications 1997: 20 publications 1998: 30 publications 1999: 23 publications 2000: 18 publications 2001: 25 publications 2002: 46 publications 2003: 38 publications 2004: 47 publications 2005: 46 publications 2006: 40 publications 2007: 35 publications 2008: 36 publications 2009: 37 publications 2010: 48 publications 2011: 36 publications 2012: 33 publications 2013: 33 publications 2014: 25 publications 2015: 21 publications 2016: 21 publications 2017: 31 publications 2018: 23 publications 2019: 18 publications 2020: 21 publications 2021: 21 publications 2022: 5 publications 2023: 10 publications 2024: 1 publication 2025: 6 publications
1961 2025

1,139 publications in total across all disciplines

View publications per year as a table
Alan G. Marshall: publications per year, 1961 to 2025
Year Publications
1961 1
1962 0
1963 0
1964 0
1965 1
1966 2
1967 0
1968 2
1969 0
1970 4
1971 4
1972 7
1973 14
1974 9
1975 7
1976 2
1977 4
1978 8
1979 7
1980 18
1981 7
1982 12
1983 8
1984 10
1985 16
1986 18
1987 13
1988 13
1989 9
1990 26
1991 17
1992 15
1993 30
1994 25
1995 16
1996 20
1997 20
1998 30
1999 23
2000 18
2001 25
2002 46
2003 38
2004 47
2005 46
2006 40
2007 35
2008 36
2009 37
2010 48
2011 36
2012 33
2013 33
2014 25
2015 21
2016 21
2017 31
2018 23
2019 18
2020 21
2021 21
2022 5
2023 10
2024 1
2025 6
Total 1,139
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Alan G. Marshall 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 G. Marshall sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 841–860 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 849 publications — 98th percentile

98% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36 849
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Alan G. Marshall 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 G. Marshall sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 128–129 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 129 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34 129
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2016 - Fellow, National Academy of Inventors
  • 2013 - Fellow of the American Academy of Arts and Sciences
  • 2012 - William H. Nichols Medal, American Chemical Society (ACS)
  • 2009 - Fellow of the American Chemical Society
  • 2008 - Oesper Award, University of Cincinnati and American Chemical Society
  • 2003 - Herty Medal, American Chemical Society (ACS)
  • 1989 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1988 - Fellow of American Physical Society (APS) Citation For fundamental contributions to many areas of spectroscopy, for inventing and developing the Fourier Transform ICR Mass Spectroscopy, and for applying the technique to the solution of a wide range of chemical and biochemical problems
  • 1976 - Fellow of Alfred P. Sloan Foundation

Overview

Alan G. Marshall is affiliated with Florida State University in the United States. Their research activity spans multiple fields, including Engineering and Chemistry, with a particular focus on Analytical Chemistry, Mechanics of Materials, Spectroscopy, Ocean Engineering, and Artificial Intelligence.

The main topics covered in their research include Petroleum Processing and Analysis, Hydrocarbon Exploration and Reservoir Analysis, Enhanced Oil Recovery Techniques, Mass Spectrometry Techniques and Applications, Wireless Signal Modulation Classification, Full-Duplex Wireless Communications, and Chronic Disease Management Strategies.

Among their recent scientific papers are:

  • Interlaboratory Study for Characterizing Monoclonal Antibodies by Top-Down and Middle-Down Mass Spectrometry, 2020, Journal of the American Society for Mass Spectrometry
  • Advances in Asphaltene Petroleomics. Part 4. Compositional Trends of Solubility Subfractions Reveal that Polyfunctional Oxygen-Containing Compounds Drive Asphaltene Chemistry, 2020, Energy & Fuels
  • Lessons Learned from a Decade-Long Assessment of Asphaltenes by Ultrahigh-Resolution Mass Spectrometry and Implications for Complex Mixture Analysis, 2021, Energy & Fuels
  • Comprehensive Compositional and Structural Comparison of Coal and Petroleum Asphaltenes Based on Extrography Fractionation Coupled with Fourier Transform Ion Cyclotron Resonance MS and MS/MS Analysis, 2020, Energy & Fuels
  • Characterization of an Asphalt Binder and Photoproducts by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry Reveals Abundant Water-Soluble Hydrocarbons, 2020, Environmental Science & Technology

Frequent coauthors of Alan G. Marshall include:

  • Ryan P. Rodgers
  • Martha L. Chacón-Patiño
  • Sydney F. Niles
  • Lissa C. Anderson
  • Christopher L. Hendrickson

Their work has been published predominantly in the following venues:

  • Energy & Fuels
  • arXiv (Cornell University)
  • Journal of the American Society for Mass Spectrometry
  • Environmental Science & Technology
  • BMJ Open

In addition to research articles, Alan G. Marshall has also contributed to book publications, including a work titled Intelligence and espionage in the English Republic c. 1600-60, published by Winchester University Press in 2023.

Over the course of their career, Alan G. Marshall has received numerous awards and honors, including:

  • Fellow of the National Academy of Inventors (2016)
  • Fellow of the American Academy of Arts and Sciences (2013)
  • William H. Nichols Medal, American Chemical Society (2012)
  • Fellow of the American Chemical Society (2009)
  • Oesper Award, University of Cincinnati and American Chemical Society (2008)
  • Herty Medal, American Chemical Society (2003)
  • Fellow of the American Association for the Advancement of Science (1989)
  • Fellow of American Physical Society (1988), recognized for fundamental contributions to spectroscopy and the invention and development of Fourier Transform Ion Cyclotron Resonance Mass Spectroscopy
  • Fellow of Alfred P. Sloan Foundation (1976)

Best Publications

  • Fourier transform ion cyclotron resonance mass spectrometry: A primer

    Alan G. Marshall;Christopher L. Hendrickson;George S. Jackson

  • FOURIER TRANSFORM ION CYCLOTRON RESONANCE SPECTROSCOPY.

    Melvin B. Comisarow;Alan G. Marshall

  • Asphaltenes, Heavy Oils, and Petroleomics

    Oliver C. Mullins;Eric Y. Sheu;Ahmed Hammami;Alan G. Marshall

  • Petroleomics: The Next Grand Challenge for Chemical Analysis

    Alan G Marshall;Ryan P Rodgers

  • Kendrick mass defect spectrum: a compact visual analysis for ultrahigh-resolution broadband mass spectra.

    Christine A. Hughey;Christopher L. Hendrickson;and Ryan P. Rodgers;Alan G. Marshall

  • Exact Masses and Chemical Formulas of Individual Suwannee River Fulvic Acids from Ultrahigh Resolution Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectra

    Alexandra C Stenson;Alan G Marshall;William T Cooper

  • Petroleomics: Chemistry of the underworld

    Alan G. Marshall;Ryan P. Rodgers

  • Tailored excitation for Fourier transform ion cyclotron mass spectrometry

    Alan G. Marshall;Tao Chin Lin Wang;Tom L. Ricca

  • Fourier Transforms in NMR, Optical, and Mass Spectrometry: A User's Handbook

    Alan G. Marshall;Francis R. Verdun

  • A universal algorithm for fast and automated charge state deconvolution of electrospray mass-to-charge ratio spectra

    Zhongqi Zhang;Alan G. Marshall

  • The role of electron capture dissociation in biomolecular analysis.

    Helen J. Cooper;Kristina Håkansson;Alan G. Marshall

  • External Accumulation of Ions for Enhanced Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

    Michael W. Senko;Christopher L. Hendrickson;Mark R. Emmett;Stone D. H. Shi

  • Resolution and identification of elemental compositions for more than 3000 crude acids in heavy petroleum by negative-ion microelectrospray high-field Fourier transform ion cyclotron resonance mass spectrometry

    Kuangnan Qian;Winston K. Robbins;Christine A. Hughey;Helen J. Cooper

  • Frequency-sweep fourier transform ion cyclotron resonance spectroscopy

    Melvin B. Comisarow;Alan G. Marshall

  • Resolution of 11 000 Compositionally Distinct Components in a Single Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrum of Crude Oil

    Christine A. Hughey;Ryan P. Rodgers;Alan G. Marshall

  • An ultrahigh-resolution mass spectrometry index to estimate natural organic matter lability.

    Juliana D'Andrilli;William T. Cooper;Christine M. Foreman;Alan G. Marshall

  • FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETRY: THE TEENAGE YEARS

    Alan G. Marshall;Peter B. Grosshans

  • High-resolution mass spectrometers.

    Alan G. Marshall;Christopher L. Hendrickson

  • Stored waveform inverse Fourier transform (SWIFT) ion excitation in trapped-ion mass spectometry: Theory and applications

    Shenheng Guan;Alan G. Marshall

  • Electron Capture Dissociation and Infrared Multiphoton Dissociation MS/MS of an N-Glycosylated Tryptic Peptide To Yield Complementary Sequence Information

    Kristina Håkansson;Helen J. Cooper;Mark R. Emmett;Catherine E. Costello

  • Reading chemical fine print: Resolution and identification of 3000 nitrogen-containing aromatic compounds from a single electrospray ionization Fourier transform ion cyclotron resonance mass spectrum of heavy petroleum crude oil

    Kuangnan Qian;Ryan P. Rodgers;Christopher L. Hendrickson;Mark R. Emmett

Frequent Co-Authors

Ryan P. Rodgers
Ryan P. Rodgers Florida State University
Christopher L. Hendrickson
Christopher L. Hendrickson Florida State University
Michael J. Chalmers
Michael J. Chalmers Eli Lilly (United States)
Sunghwan Kim
Sunghwan Kim Kyungpook National University
John R. Eyler
John R. Eyler University of Florida
Patrick A. Limbach
Patrick A. Limbach University of Cincinnati
Laurance D. Hall
Laurance D. Hall University of Cambridge
Markus C. Wahl
Markus C. Wahl Freie Universität Berlin
Christopher M. Reddy
Christopher M. Reddy Woods Hole Oceanographic Institution

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