K. Levsen

8.5k total citations
197 papers, 6.8k citations indexed

About

K. Levsen is a scholar working on Spectroscopy, Analytical Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, K. Levsen has authored 197 papers receiving a total of 6.8k indexed citations (citations by other indexed papers that have themselves been cited), including 124 papers in Spectroscopy, 48 papers in Analytical Chemistry and 33 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in K. Levsen's work include Mass Spectrometry Techniques and Applications (103 papers), Analytical Chemistry and Chromatography (67 papers) and Analytical chemistry methods development (45 papers). K. Levsen is often cited by papers focused on Mass Spectrometry Techniques and Applications (103 papers), Analytical Chemistry and Chromatography (67 papers) and Analytical chemistry methods development (45 papers). K. Levsen collaborates with scholars based in Germany, Netherlands and United States. K. Levsen's co-authors include Helmut Schwarz, Ralf Eisert, G. Wünsch, H. D. Beckey, Friedrich Borchers, Fred W. McLafferty, Dietrich A. Volmer, Otto Creutzenberg, Uwe Heinrich and Jürgen Borlak and has published in prestigious journals such as Journal of the American Chemical Society, Analytical Chemistry and The Science of The Total Environment.

In The Last Decade

K. Levsen

196 papers receiving 6.3k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
K. Levsen 3.4k 1.9k 1.4k 989 732 197 6.8k
David J. Miller 3.5k 1.0× 2.8k 1.5× 2.1k 1.5× 263 0.3× 3.2k 4.3× 196 9.6k
Zoltán Mester 2.0k 0.6× 3.8k 2.0× 2.0k 1.5× 232 0.2× 845 1.2× 258 8.2k
J. D. Winefordner 1.4k 0.4× 1.7k 0.9× 452 0.3× 336 0.3× 710 1.0× 158 5.0k
Tapio Kotiaho 4.2k 1.2× 1.4k 0.8× 606 0.4× 289 0.3× 2.3k 3.2× 176 7.0k
Matthias Witt 1.6k 0.5× 1.2k 0.6× 492 0.4× 270 0.3× 413 0.6× 152 6.9k
Ryuichi Arakawa 2.5k 0.7× 923 0.5× 804 0.6× 250 0.3× 792 1.1× 243 8.3k
Ralph E. Sturgeon 3.0k 0.9× 8.8k 4.7× 3.1k 2.3× 218 0.2× 1.0k 1.4× 334 13.3k
Hiroki Haraguchi 1.5k 0.5× 2.5k 1.3× 867 0.6× 212 0.2× 756 1.0× 307 5.4k
K. Ballschmiter 1.4k 0.4× 803 0.4× 4.5k 3.3× 337 0.3× 655 0.9× 217 7.3k
Alan Townshend 1.1k 0.3× 1.7k 0.9× 437 0.3× 214 0.2× 1.4k 1.9× 220 5.7k

Countries citing papers authored by K. Levsen

Since Specialization
Citations

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

Fields of papers citing papers by K. Levsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Levsen

This figure shows the co-authorship network connecting the top 25 collaborators of K. Levsen. A scholar is included among the top collaborators of K. Levsen 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 K. Levsen. K. Levsen 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
1.
Borlak, Jürgen, et al.. (2005). METABOLISM OF VERAPAMIL IN CULTURES OF RAT ALVEOLAR EPITHELIAL CELLS AND PHARMACOKINETICS AFTER ADMINISTRATION BY INTRAVENOUS AND INHALATION ROUTES. Drug Metabolism and Disposition. 33(8). 1108–1114. 8 indexed citations
2.
Leng, G., Edith Berger‐Preiß, K. Levsen, et al.. (2005). Pyrethroids used indoor - ambient monitoring of pyrethroids following a pest control operation. International Journal of Hygiene and Environmental Health. 208(3). 193–199. 36 indexed citations
3.
Mullett, Wayne M., Markus Walles, K. Levsen, Jürgen Borlak, & Janusz Pawliszyn. (2004). Multidimensional on-line sample preparation of verapamil and its metabolites by a molecularly imprinted polymer coupled to liquid chromatography–mass spectrometry. Journal of Chromatography B. 801(2). 297–306. 74 indexed citations
4.
Levsen, K., Hans‐Martin Schiebel, Beate Behnke, et al.. (2004). Structure elucidation of phase II metabolites by tandem mass spectrometry: an overview. Journal of Chromatography A. 1067(1-2). 55–72. 200 indexed citations
5.
Berger‐Preiß, Edith, et al.. (2003). Development of a gas chromatography–mass spectrometry method for the determination of household insecticides in indoor air. Journal of Chromatography A. 985(1-2). 147–157. 36 indexed citations
6.
Borlak, Jürgen, Markus Walles, K. Levsen, & Thomas Thum. (2003). VERAPAMIL: METABOLISM IN CULTURES OF PRIMARY HUMAN CORONARY ARTERIAL ENDOTHELIAL CELLS. Drug Metabolism and Disposition. 31(7). 888–891. 27 indexed citations
7.
Berger‐Preiß, Edith, et al.. (2003). Human biomonitoring of pyrethrum and pyrethroid insecticides used indoors:. Journal of Chromatography B. 795(2). 195–207. 24 indexed citations
8.
Walles, Markus, Thomas Thum, K. Levsen, & Jürgen Borlak. (2003). Metabolism of verapamil: 24 new phase I and phase II metabolites identified in cell cultures of rat hepatocytes by liquid chromatography–tandem mass spectrometry. Journal of Chromatography B. 798(2). 265–274. 25 indexed citations
9.
Walles, Markus, Jürgen Borlak, & K. Levsen. (2002). Application of restricted access material (RAM) with precolumn-switching and matrix solid-phase dispersion (MSPD) to the study of the metabolism and pharmacokinetics of Verapamil. Analytical and Bioanalytical Chemistry. 374(7-8). 1179–1186. 16 indexed citations
10.
Walles, Markus, Thomas Thum, K. Levsen, & Jürgen Borlak. (2002). Verapamil: new insight into the molecular mechanism of drug oxidation in the human heart. Journal of Chromatography A. 970(1-2). 117–130. 19 indexed citations
11.
12.
Artelt, S., et al.. (1999). Bioavailability of fine dispersed platinum as emitted from automotive catalytic converters: a model study. The Science of The Total Environment. 228(2-3). 219–242. 87 indexed citations
13.
Benfenati, Emilio, Roberto Fanelli, A. Preiß, et al.. (1999). Comparative studies of the leachate of an industrial landfill by gas chromatography–mass spectrometry, liquid chromatography–nuclear magnetic resonance and liquid chromatography–mass spectrometry. Journal of Chromatography A. 831(2). 243–256. 36 indexed citations
14.
Kock, Heiko, et al.. (1996). Platinum solubility of a substance designed as a model for emissions of automobile catalytic converters. Analytical and Bioanalytical Chemistry. 354(5-6). 742–746. 39 indexed citations
15.
Volmer, Dietrich A., et al.. (1995). Multiresidue analysis of polar pesticides in surface and drinking water by on-line enrichment and thermospray LC-MS. Analytical and Bioanalytical Chemistry. 351(7). 642–649. 33 indexed citations
16.
Levsen, K., et al.. (1990). Gas chromatographic and mass spectrometric determination of nitroaromatics in water. Journal of Chromatography A. 518(1). 21–40. 78 indexed citations
17.
Levsen, K., et al.. (1983). Hydrogen migration in ionized 4-octene: a field ionization kinetic study. Journal of Mass Spectrometry. 18(10). 444–447. 2 indexed citations
18.
19.
Levsen, K. & Helmut Schwarz. (1976). Collisional Activation Mass Spectrometry—A New Probe for Determining the Structure of Ions in the Gas Phase. Angewandte Chemie International Edition in English. 15(9). 509–519. 226 indexed citations
20.
Levsen, K. & Helmut Schwarz. (1976). Stoßaktivierungsmassenspektrometrie ‐ eine neue Sonde zur Strukturbestimmung von Ionen in der Gasphase. Angewandte Chemie. 88(18). 589–599. 112 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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