Solfrid Hegstad

906 total citations
33 papers, 695 citations indexed

About

Solfrid Hegstad is a scholar working on Toxicology, Spectroscopy and Molecular Biology. According to data from OpenAlex, Solfrid Hegstad has authored 33 papers receiving a total of 695 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Toxicology, 11 papers in Spectroscopy and 8 papers in Molecular Biology. Recurrent topics in Solfrid Hegstad's work include Forensic Toxicology and Drug Analysis (15 papers), Analytical Chemistry and Chromatography (10 papers) and Carcinogens and Genotoxicity Assessment (5 papers). Solfrid Hegstad is often cited by papers focused on Forensic Toxicology and Drug Analysis (15 papers), Analytical Chemistry and Chromatography (10 papers) and Carcinogens and Genotoxicity Assessment (5 papers). Solfrid Hegstad collaborates with scholars based in Norway, Denmark and United Kingdom. Solfrid Hegstad's co-authors include Olav Spigset, Asbjørg S. Christophersen, Elisabeth Leere Øiestad, Philipp Lobmaier, Arne Helland, Hassan Z. Khiabani, Nikolaj Kunøe, Lena Kristoffersen, R. Reistad and Øistein Kristensen and has published in prestigious journals such as The British Journal of Psychiatry, Plastic & Reconstructive Surgery and Addiction.

In The Last Decade

Solfrid Hegstad

33 papers receiving 679 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Solfrid Hegstad Norway 16 237 166 143 115 108 33 695
Francis M. Urry United States 17 189 0.8× 225 1.4× 155 1.1× 45 0.4× 297 2.8× 28 1.0k
François‐Ludovic Sauvage France 17 231 1.0× 247 1.5× 131 0.9× 50 0.4× 290 2.7× 43 1.0k
Jörg Teske Germany 15 273 1.2× 197 1.2× 132 0.9× 47 0.4× 96 0.9× 37 678
Ivan Ricordel France 13 129 0.5× 81 0.5× 66 0.5× 168 1.5× 84 0.8× 33 527
Susanne Vogt Germany 13 198 0.8× 296 1.8× 129 0.9× 49 0.4× 166 1.5× 25 782
CK Ching Hong Kong 22 219 0.9× 92 0.6× 39 0.3× 61 0.5× 273 2.5× 75 1.3k
Luc Humbert France 15 252 1.1× 50 0.3× 44 0.3× 55 0.5× 101 0.9× 77 693
Islam Amine Larabi France 14 245 1.0× 78 0.5× 47 0.3× 44 0.4× 103 1.0× 61 587
Carl E. Wolf United States 17 182 0.8× 89 0.5× 67 0.5× 67 0.6× 100 0.9× 39 766
Isabelle Etting France 15 244 1.0× 75 0.5× 62 0.4× 40 0.3× 84 0.8× 43 539

Countries citing papers authored by Solfrid Hegstad

Since Specialization
Citations

This map shows the geographic impact of Solfrid Hegstad'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 Solfrid Hegstad with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Solfrid Hegstad more than expected).

Fields of papers citing papers by Solfrid Hegstad

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Solfrid Hegstad. 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 Solfrid Hegstad. The network helps show where Solfrid Hegstad may publish in the future.

Co-authorship network of co-authors of Solfrid Hegstad

This figure shows the co-authorship network connecting the top 25 collaborators of Solfrid Hegstad. A scholar is included among the top collaborators of Solfrid Hegstad 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 Solfrid Hegstad. Solfrid Hegstad 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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Øiestad, Elisabeth Leere, et al.. (2023). Conductive vial electromembrane extraction of opioids from oral fluid. Analytical and Bioanalytical Chemistry. 415(22). 5323–5335. 10 indexed citations
4.
Øiestad, Elisabeth Leere, et al.. (2021). Determination of psychoactive drugs in serum using conductive vial electromembrane extraction combined with UHPLC-MS/MS. Journal of Chromatography B. 1183. 122926–122926. 22 indexed citations
5.
Lydersen, Stian, et al.. (2020). Association between low body weight and cytochrome P‐450 enzyme activity in patients with anorexia nervosa. Pharmacology Research & Perspectives. 8(3). e00615–e00615. 12 indexed citations
6.
Gundersen, Per Ole M., Arne Helland, Olav Spigset, & Solfrid Hegstad. (2018). Quantification of 21 antihypertensive drugs in serum using UHPLC-MS/MS. Journal of Chromatography B. 1089. 84–93. 21 indexed citations
7.
Hegstad, Solfrid, et al.. (2018). Enantiomeric separation and quantification of R/S-amphetamine in urine by ultra-high performance supercritical fluid chromatography tandem mass spectrometry. Journal of Chromatography B. 1077-1078. 7–12. 39 indexed citations
8.
Hegstad, Solfrid, et al.. (2017). Enantiomeric separation and quantification of citalopram in serum by ultra-high performance supercritical fluid chromatography-tandem mass spectrometry. Journal of Chromatography B. 1061-1062. 103–109. 18 indexed citations
9.
Hegstad, Solfrid, Andreas Austgulen Westin, & Olav Spigset. (2015). Detection Times of Carboxylic Acid Metabolites of the Synthetic Cannabinoids JWH-018 and JWH-073 in Human Urine. Journal of Analytical Toxicology. 39(4). 280–286. 9 indexed citations
10.
11.
Hegstad, Solfrid, et al.. (2013). EtG/EtS in Urine from Sexual Assault Victims Determined by UPLC-MS-MS. Journal of Analytical Toxicology. 37(4). 227–232. 15 indexed citations
12.
Kunøe, Nikolaj, Philipp Lobmaier, John‐Kåre Vederhus, et al.. (2010). Retention in naltrexone implant treatment for opioid dependence. Drug and Alcohol Dependence. 111(1-2). 166–169. 17 indexed citations
13.
Hegstad, Solfrid, Lena Kristoffersen, Asbjørg S. Christophersen, & Hassan Z. Khiabani. (2009). Bestemmelse av legemidler og rusmidler i hår. Tidsskrift for Den norske legeforening. 129(1). 36–38. 1 indexed citations
14.
Hegstad, Solfrid, Arne Stray‐Pedersen, Åshild Vege, et al.. (2009). Determination of Cotinine in Pericardial Fluid and Whole Blood by Liquid Chromatography-Tandem Mass Spectrometry. Journal of Analytical Toxicology. 33(4). 218–222. 6 indexed citations
15.
Hegstad, Solfrid, et al.. (2009). Determination of Ethylglucuronide in Oral Fluid by Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry. Journal of Analytical Toxicology. 33(4). 204–207. 14 indexed citations
16.
Hegstad, Solfrid, Hassan Z. Khiabani, Lena Kristoffersen, et al.. (2008). Drug Screening of Hair by Liquid Chromatography-Tandem Mass Spectrometry. Journal of Analytical Toxicology. 32(5). 364–372. 77 indexed citations
17.
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
18.
Hegstad, Solfrid, Elisabeth Leere Øiestad, Unni Johansen, & Asbjørg S. Christophersen. (2006). Determination of Benzodiazepines in Human Urine using Solid-Phase Extraction and High-Performance Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry. Journal of Analytical Toxicology. 30(1). 31–37. 47 indexed citations
19.
Alexander, Jan, R. Reistad, Solfrid Hegstad, et al.. (2002). Biomarkers of exposure to heterocyclic amines: approaches to improve the exposure assessment. Food and Chemical Toxicology. 40(8). 1131–1137. 47 indexed citations
20.
Hegstad, Solfrid, R. Reistad, Line Småstuen Haug, & Janet Alexander. (2002). Eumelanin is a Major Determinant for2‐Amino‐1‐methyl‐6‐phenylimidazo[4,5‐b]pyridine (PhIP) Incorporation into Hair of Mice. Pharmacology & Toxicology. 90(6). 333–337. 15 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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