World's Best Scientists 2026 revealed!
Knut E. Rasmussen

Knut E. Rasmussen

D-Index & Metrics

Chemistry

D-Index
58
Citations
12680
World Ranking
10569
National Ranking
31

Knut E. Rasmussen 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 Knut E. Rasmussen 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: 137 publications — 10th percentile

10% of scientists in this discipline score the same or lower.

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

Knut E. Rasmussen 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 Knut E. Rasmussen 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: 58 D-Index — 42nd percentile

42% of scientists in this discipline score the same or lower.

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

Overview

Knut E. Rasmussen is affiliated with the University of Oslo in Norway and has contributed to academic research primarily through publications in medical journals. Their recent work includes a paper titled Arne F. Nordøy, published in 2020 in Tidsskrift for Den norske legeforening.

Rasmussen has collaborated with a number of researchers across various projects. Frequent co-authors include:

  • Helge Stalsberg
  • Rolf Seljelid
  • Jarle Aarbakke
  • Knut E. Schrøder
  • Jan Martin Maltau

The primary publication venue for Rasmussen's work is Tidsskrift for Den norske legeforening, evidencing involvement in medical and health sciences literature.

The scope of Rasmussen's research reflects interests aligned with topics covered in these journals and co-authored projects, though specific main fields or subfields of study and detailed topics of work have not been explicitly listed.

Best Publications

  • Liquid-liquid-liquid microextraction for sample preparation of biological fluids prior to capillary electrophoresis.

    Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Electrokinetic migration across artificial liquid membranes: New concept for rapid sample preparation of biological fluids

    Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Environmental and bioanalytical applications of hollow fiber membrane liquid-phase microextraction: a review.

    Jingyi Lee;Hian Kee Lee;Knut E. Rasmussen;Stig Pedersen-Bjergaard

  • Developments in hollow fibre-based, liquid-phase microextraction

    Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Liquid-phase microextraction with porous hollow fibers, a miniaturized and highly flexible format for liquid-liquid extraction.

    Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Development of a simple in-vial liquid-phase microextraction device for drug analysis compatible with capillary gas chromatography, capillary electrophoresis and high-performance liquid chromatography.

    Knut Einar Rasmussen;Stig Pedersen-Bjergaard;Mette Krogh;Hege Grefslie Ugland

  • Simulation of flux during electro-membrane extraction based on the Nernst-Planck equation.

    Astrid Gjelstad;Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Bioanalysis of drugs by liquid-phase microextraction coupled to separation techniques.

    Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Electrokinetic migration across artificial liquid membranes: Tuning the membrane chemistry to different types of drug substances

    Astrid Gjelstad;Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Electrokinetic migration of acidic drugs across a supported liquid membrane.

    Marte Balchen;Astrid Gjelstad;Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Recovery, enrichment and selectivity in liquid-phase microextraction comparison with conventional liquid-liquid extraction.

    Tung Si Ho;Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Microextraction across supported liquid membranes forced by pH gradients and electrical fields

    Astrid Gjelstad;Torill Marita Andersen;Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Liquid-phase microextraction and capillary electrophoresis of acidic drugs.

    Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Low-voltage electromembrane extraction of basic drugs from biological samples

    Inger Johanne Østegaard Kjelsen;Astrid Gjelstad;Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Liquid-phase microextraction and capillary electrophoresis of citalopram, an antidepressant drug

    Trine Grønhaug Halvorsen;Stig Pedersen-Bjergaard;Knut E. Rasmussen

  • Electromembrane extraction of basic drugs from untreated human plasma and whole blood under physiological pH conditions

    Astrid Gjelstad;Knut Einar Rasmussen;Stig Pedersen-Bjergaard

  • Parameters affecting electro membrane extraction of basic drugs.

    Torunn M. Middelthon-Bruer;Astrid Gjelstad;Knut E. Rasmussen;Stig Pedersen-Bjergaard

  • Liquid-liquid extraction procedures for sample enrichment in capillary zone electrophoresis.

    Stig Pedersen-Bjergaard;Knut Einar Rasmussen;Trine Grønhaug Halvorsen

  • Simultaneous extraction of acidic and basic drugs at neutral sample pH: a novel electro-mediated microextraction approach.

    Chanbasha Basheer;Jingyi Lee;Stig Pedersen-Bjergaard;Knut Einar Rasmussen

  • Liquid-phase microextraction as a sample preparation technique prior to capillary gas chromatographic-determination of benzodiazepines in biological matrices.

    Hege Grefslie Ugland;Mette Krogh;Knut E Rasmussen

Frequent Co-Authors

Stig Pedersen-Bjergaard
Stig Pedersen-Bjergaard University of Oslo
Hian Kee Lee
Hian Kee Lee National University of Singapore
Risto Kostiainen
Risto Kostiainen University of Helsinki
Jan Åke Jönsson
Jan Åke Jönsson Lund University
Steen Honoré Hansen
Steen Honoré Hansen University of Copenhagen
Chanbasha Basheer
Chanbasha Basheer King Fahd University of Petroleum and Minerals
Tapio Kotiaho
Tapio Kotiaho University of Helsinki
Cristina Nerín
Cristina Nerín University of Zaragoza

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