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André J. Simpson

André J. Simpson

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 69 6189 5615 161 144 316 16967

André J. Simpson publications per year

The chart shows the history of publications by André J. Simpson between 1995 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. André J. Simpson published across 31 years, from 1995 to 2025, averaging 11.2 papers a year. Output peaked at 28 publications in 2013. 38 of the 348 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1995 to 2025. Vertical axis: number of publications, 0 to 28. Peak 28 publications in 2013. 1995: 1 publication 1996: 0 publications 1997: 4 publications 1998: 0 publications 1999: 1 publication 2000: 1 publication 2001: 5 publications 2002: 4 publications 2003: 7 publications 2004: 4 publications 2005: 5 publications 2006: 6 publications 2007: 9 publications 2008: 7 publications 2009: 8 publications 2010: 16 publications 2011: 21 publications 2012: 13 publications 2013: 28 publications 2014: 8 publications 2015: 20 publications 2016: 16 publications 2017: 18 publications 2018: 14 publications 2019: 17 publications 2020: 19 publications 2021: 15 publications 2022: 21 publications 2023: 22 publications 2024: 19 publications 2025: 19 publications
1995 2025

348 publications in total across all disciplines

View publications per year as a table
André J. Simpson: publications per year, 1995 to 2025
Year Publications
1995 1
1996 0
1997 4
1998 0
1999 1
2000 1
2001 5
2002 4
2003 7
2004 4
2005 5
2006 6
2007 9
2008 7
2009 8
2010 16
2011 21
2012 13
2013 28
2014 8
2015 20
2016 16
2017 18
2018 14
2019 17
2020 19
2021 15
2022 21
2023 22
2024 19
2025 19
Total 348
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André J. Simpson 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 André J. Simpson 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, 301–320 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: 316 publications — 67th percentile

67% 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
301–320 764 316
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
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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André J. Simpson 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 André J. Simpson 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, 68–69 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: 69 D-Index — 66th percentile

66% 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 69
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
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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Overview

André J. Simpson is affiliated with the University of Toronto in Canada and specializes primarily in Environmental Science. Their research portfolio includes significant contributions across several subfields including Nuclear and High Energy Physics, Spectroscopy, Molecular Biology, Radiology, Nuclear Medicine and Imaging, as well as Health, Toxicology and Mutagenesis.

The main topics of their work focus on advanced techniques and applications of Nuclear Magnetic Resonance (NMR) spectroscopy and Metabolomics coupled with Mass Spectrometry. Key research interests include:

  • NMR spectroscopy and applications
  • Metabolomics and Mass Spectrometry Studies
  • Advanced NMR Techniques and Applications
  • Advanced MRI Techniques and Applications
  • Microplastics and Plastic Pollution
  • Toxic Organic Pollutants Impact
  • Microfluidic and Capillary Electrophoresis Applications

Frequently publishing in analytical chemistry and environmental science venues, the scientist has contributed notably to journals such as:

  • Analytical Chemistry
  • Magnetic Resonance in Chemistry
  • Journal of Chemical Education
  • ACS Earth and Space Chemistry
  • Metabolomics

Selected recent papers include:

  • "A ubiquitous tire rubber-derived chemical induces acute mortality in coho salmon" (2020), published in Science
  • "Aqueous Photoreactions of Wood Smoke Brown Carbon" (2020), published in ACS Earth and Space Chemistry
  • "Maternal exposure to polystyrene microplastics alters placental metabolism in mice" (2022), published in Metabolomics
  • "Chlorines Are Not Evenly Substituted in Chlorinated Paraffins: A Predicted NMR Pattern Matching Framework for Isomeric Discrimination in Complex Contaminant Mixtures" (2020), published in Environmental Science & Technology Letters
  • "Gas Chromatography-(Cyclic) Ion Mobility Mass Spectrometry: A Novel Platform for the Discovery of Unknown Per-/Polyfluoroalkyl Substances" (2022), published in Analytical Chemistry

André J. Simpson collaborates frequently with a consistent core of co-authors, including Ronald Soong, Myrna J. Simpson, Rajshree Ghosh Biswas, Daniel H. Lysak, and Amy Jenne.

Best Publications

  • A ubiquitous tire rubber–derived chemical induces acute mortality in coho salmon

    Zhenyu Tian;Haoqi Zhao;Katherine T. Peter;Melissa Gonzalez

  • Microbially derived inputs to soil organic matter: are current estimates too low?

    André J Simpson;Myrna J Simpson;Emma Smith;Brian P Kelleher

  • Chemical and mineralogical controls on humic acid sorption to clay mineral surfaces

    Xiaojuan Feng;André J. Simpson;Myrna J. Simpson

  • Humic Substances in Soils: Are They Really Chemically Distinct?

    Brian P Kelleher;Andre J Simpson

  • Molecular structures and associations of humic substances in the terrestrial environment

    André J. Simpson;William L. Kingery;Michael H. B. Hayes;Manfred Spraul

  • NMR spectroscopy in environmental research: From molecular interactions to global processes

    André J. Simpson;David J. McNally;Myrna J. Simpson

  • Physical, chemical, and biochemical mechanisms of soil organic matter stabilization under conservation tillage systems: A central role for microbes and microbial by-products in C sequestration

    César Plaza;Denis Courtier-Murias;José M. Fernández;Alfredo Polo

  • Increased cuticular carbon sequestration and lignin oxidation in response to soil warming

    Xiaojuan Feng;André J. Simpson;Kevin P. Wilson;D. Dudley Williams

  • Major Structural Components in Freshwater Dissolved Organic Matter

    Buuan Lam;Andrew Baer;Mehran Alaee;Brent Lefebvre

  • Shifts in microbial community and water-extractable organic matter composition with biochar amendment in a temperate forest soil

    Perry J. Mitchell;André J. Simpson;Ronald Soong;Myrna J. Simpson

  • Determining the molecular weight, aggregation, structures and interactions of natural organic matter using diffusion ordered spectroscopy

    André J. Simpson

  • Purge NMR: effective and easy solvent suppression.

    Andre J. Simpson;Sarah A. Brown

  • Unraveling the Structural Components of Soil Humin by Use of Solution-State Nuclear Magnetic Resonance Spectroscopy

    Andre J. Simpson;Guixue Song;Emma Smith;Buuan Lam

  • Cross-coupling of sulfonamide antimicrobial agents with model humic constituents.

    Heidi M. Bialk;and André J. Simpson;Joel A. Pedersen

  • High resolution electrospray ionization mass spectrometry and 2D solution NMR for the analysis of DOM extracted by C18 solid phase disk

    Sunghwan Kim;Andre J. Simpson;Elizabeth B. Kujawinski;Michael A. Freitas

  • The Chemical Ecology of Soil Organic Matter Molecular Constituents

    Myrna J. Simpson;André J. Simpson

  • Direct 1H NMR spectroscopy of dissolved organic matter in natural waters

    Buuan Lam;André J. Simpson

  • The Application of 1H HR-MAS NMR Spectroscopy for the Study of Structures and Associations of Organic Components at the Solid−Aqueous Interface of a Whole Soil

    André J. Simpson;William L. Kingery;David R. Shaw;Manfred Spraul

  • HILIC-NMR: toward the identification of individual molecular components in dissolved organic matter.

    Gwen C. Woods;Myrna J. Simpson;Philip J. Koerner;Antonia Napoli

  • Nuclear magnetic resonance spectroscopy and its key role in environmental research.

    Andre J. Simpson;Myrna J. Simpson;Ronald Soong

  • 3-D Structural Modeling of Humic Acids through Experimental Characterization, Computer Assisted Structure Elucidation and Atomistic Simulations. 1. Chelsea Soil Humic Acid

    Mamadou S. Diallo;Andre Simpson;Paul L. Gassman;Jean Loup Faulon

Frequent Co-Authors

Myrna J. Simpson
Myrna J. Simpson University of Toronto
Wolfgang Bermel
Wolfgang Bermel University of Florence
Patrick G. Hatcher
Patrick G. Hatcher Old Dominion University
Manfred Spraul
Manfred Spraul University of Aveiro
Eric J. Reiner
Eric J. Reiner Ministry of the Environment, Conservation and Parks
George B. Arhonditsis
George B. Arhonditsis University of Toronto
Antony J. Williams
Antony J. Williams Environmental Protection Agency
Malcolm M. Campbell
Malcolm M. Campbell University of Guelph
Kate Lajtha
Kate Lajtha Oregon State University
Joann K. Whalen
Joann K. Whalen McGill University

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