Thomas Berg

668 total citations
24 papers, 539 citations indexed

About

Thomas Berg is a scholar working on Toxicology, Molecular Biology and Spectroscopy. According to data from OpenAlex, Thomas Berg has authored 24 papers receiving a total of 539 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Toxicology, 9 papers in Molecular Biology and 8 papers in Spectroscopy. Recurrent topics in Thomas Berg's work include Forensic Toxicology and Drug Analysis (15 papers), Metabolomics and Mass Spectrometry Studies (8 papers) and Analytical Chemistry and Chromatography (8 papers). Thomas Berg is often cited by papers focused on Forensic Toxicology and Drug Analysis (15 papers), Metabolomics and Mass Spectrometry Studies (8 papers) and Analytical Chemistry and Chromatography (8 papers). Thomas Berg collaborates with scholars based in Norway, Portugal and Russia. Thomas Berg's co-authors include Dag Helge Strand, Elsa Lundanes, Asbjørg S. Christophersen, Åse Marit Leere Øiestad, Huiling Liu, Morten Karlsen, Jon Eigill Johansen, Elisabeth Leere Øiestad, Solfrid Hegstad and Lakhwinder Kaur and has published in prestigious journals such as Medicine & Science in Sports & Exercise, Journal of Chromatography A and Phytochemistry.

In The Last Decade

Thomas Berg

22 papers receiving 517 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Thomas Berg Norway 12 235 168 168 80 72 24 539
Dag Helge Strand Norway 11 265 1.1× 157 0.9× 169 1.0× 83 1.0× 109 1.5× 16 547
Yan Shi China 18 334 1.4× 267 1.6× 175 1.0× 75 0.9× 73 1.0× 76 796
Sylvain Dulaurent France 15 211 0.9× 101 0.6× 108 0.6× 60 0.8× 83 1.2× 38 763
Ashraf Mozayani United States 15 280 1.2× 147 0.9× 126 0.8× 80 1.0× 99 1.4× 38 646
Mário Dias Portugal 16 390 1.7× 127 0.8× 154 0.9× 85 1.1× 93 1.3× 30 644
Jörg Teske Germany 15 273 1.2× 96 0.6× 197 1.2× 72 0.9× 186 2.6× 37 678
Marie Katrine Klose Nielsen Denmark 16 479 2.0× 147 0.9× 168 1.0× 87 1.1× 61 0.8× 33 693
Niclas Nikolai Stephanson Sweden 11 248 1.1× 102 0.6× 147 0.9× 116 1.4× 58 0.8× 15 528
Jin Young Kim South Korea 16 342 1.5× 134 0.8× 168 1.0× 76 0.9× 129 1.8× 53 681
Veniero Gambaro Italy 18 194 0.8× 181 1.1× 124 0.7× 56 0.7× 243 3.4× 60 782

Countries citing papers authored by Thomas Berg

Since Specialization
Citations

This map shows the geographic impact of Thomas Berg's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Thomas Berg with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas Berg more than expected).

Fields of papers citing papers by Thomas Berg

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas Berg. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Thomas Berg. The network helps show where Thomas Berg may publish in the future.

Co-authorship network of co-authors of Thomas Berg

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas Berg. A scholar is included among the top collaborators of Thomas Berg based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Thomas Berg. Thomas Berg is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
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Vindenes, Vigdis, et al.. (2021). Multimorbidity, psychoactive substance use and psychological distress among acute medically ill patients: a cross-sectional study. BMJ Open. 11(11). e052428–e052428. 1 indexed citations
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Ponce, Julio, et al.. (2020). Determination of the alcohol biomarker phosphatidylethanol 16:0/18:1 and 33 compounds from eight different drug classes in whole blood by LC-MS/MS. Journal of Pharmacological and Toxicological Methods. 107. 106939–106939. 16 indexed citations
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Leyton, Vilma, et al.. (2018). Determination of cocaine, metabolites and a crack cocaine biomarker in whole blood by liquid–liquid extraction and UHPLC–MS/MS. Forensic Science International. 289. 165–174. 18 indexed citations
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Bogen, Inger Lise, et al.. (2017). Determination of adrenaline, noradrenaline and corticosterone in rodent blood by ion pair reversed phase UHPLC–MS/MS. Journal of Chromatography B. 1072. 161–172. 16 indexed citations
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Høiseth, Gudrun, et al.. (2017). Urinary Kinetics of Heroin Metabolites in Pigs Shortly After Intake. Journal of Analytical Toxicology. 41(5). 451–454.
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Øiestad, Åse Marit Leere, et al.. (2017). Separation of isomers of new psychoactive substances and isotope-labeled amphetamines using UHPSFC-MS/MS and UHPLC-MS/MS. Journal of Liquid Chromatography & Related Technologies. 41(7). 391–400. 6 indexed citations
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Øiestad, Åse Marit Leere, et al.. (2016). Determination of 21 drugs in oral fluid using fully automated supported liquid extraction and UHPLC‐MS/MS. Drug Testing and Analysis. 9(5). 808–823. 47 indexed citations
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Berg, Thomas, Morten Karlsen, Åse Marit Leere Øiestad, et al.. (2014). Evaluation of 13C- and 2H-labeled internal standards for the determination of amphetamines in biological samples, by reversed-phase ultra-high performance liquid chromatography–tandem mass spectrometry. Journal of Chromatography A. 1344. 83–90. 37 indexed citations
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Berg, Thomas, et al.. (2013). Determination of Buprenorphine, Fentanyl and LSD in Whole Blood by UPLC-MS-MS. Journal of Analytical Toxicology. 37(3). 159–165. 24 indexed citations
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Berg, Thomas & Dag Helge Strand. (2011). 13C labelled internal standards—A solution to minimize ion suppression effects in liquid chromatography–tandem mass spectrometry analyses of drugs in biological samples?. Journal of Chromatography A. 1218(52). 9366–9374. 128 indexed citations
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Berg, Thomas, Elsa Lundanes, Asbjørg S. Christophersen, & Dag Helge Strand. (2008). Determination of opiates and cocaine in urine by high pH mobile phase reversed phase UPLC–MS/MS. Journal of Chromatography B. 877(4). 421–432. 109 indexed citations
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Hegstad, Solfrid, et al.. (2007). Rapid Quantification of Buprenorphine-Glucuronide and Norbuprenorphine-Glucuronide in Human Urine by LC-MS-MS. Journal of Analytical Toxicology. 31(4). 214–219. 32 indexed citations
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Mooren, Marrie van der, et al.. (2007). Light Scatter Characteristics of Acrylic Intraocular Lenses. 48(13). 3126–3126. 1 indexed citations
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Dewulf, Jeroen, et al.. (2005). Uitbraken en bestrijding van klassieke varkenspest, mond- en klauwzeer en hoogpathogene aviaire influenza in de europese unie. Vlaams Diergeneeskundig Tijdschrift. 74(2). 2 indexed citations
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Calcaterra, Domenico, et al.. (1997). USEFULNESS OF THE POSTEXERCISE SYSTOLIC BLOOD PRESSURE RESPONSE IN THE DIAGNOSIS OF MYOCARDIAL ISCHEMIA 40. Medicine & Science in Sports & Exercise. 29(Supplement). 7–7. 3 indexed citations
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Berg, Thomas, Søren Damtoft, Søren Rosendal Jensen, Bent Nielsen, & Lars Fledelius Rickelt. (1985). Iridoid glucosides from Pedicularis. Phytochemistry. 24(3). 491–493. 18 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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