Kei Zaitsu

2.2k total citations
77 papers, 1.7k citations indexed

About

Kei Zaitsu is a scholar working on Toxicology, Molecular Biology and Spectroscopy. According to data from OpenAlex, Kei Zaitsu has authored 77 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 41 papers in Toxicology, 25 papers in Molecular Biology and 19 papers in Spectroscopy. Recurrent topics in Kei Zaitsu's work include Forensic Toxicology and Drug Analysis (41 papers), Metabolomics and Mass Spectrometry Studies (22 papers) and Psychedelics and Drug Studies (15 papers). Kei Zaitsu is often cited by papers focused on Forensic Toxicology and Drug Analysis (41 papers), Metabolomics and Mass Spectrometry Studies (22 papers) and Psychedelics and Drug Studies (15 papers). Kei Zaitsu collaborates with scholars based in Japan. Kei Zaitsu's co-authors include Hitoshi Tsuchihashi, Munehiro Katagi, Akihiro Miki, Noriaki Shima, Akira Ishii, Tooru Kamata, Hiroe Kamata, Koichi Suzuki, Maiko Kusano and Yumi Hayashi and has published in prestigious journals such as Analytical Chemistry, Scientific Reports and Analytica Chimica Acta.

In The Last Decade

Kei Zaitsu

75 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kei Zaitsu Japan 27 1.1k 587 486 448 333 77 1.7k
Akihiro Miki Japan 28 1.1k 1.1× 413 0.7× 467 1.0× 590 1.3× 308 0.9× 104 1.9k
Noriaki Shima Japan 24 981 0.9× 390 0.7× 446 0.9× 271 0.6× 335 1.0× 64 1.3k
Kenji Kuwayama Japan 26 1.0k 1.0× 551 0.9× 353 0.7× 611 1.4× 267 0.8× 140 2.0k
Kenji Tsujikawa Japan 27 1.1k 1.0× 482 0.8× 413 0.8× 662 1.5× 320 1.0× 145 2.1k
Pierce V. Kavanagh Ireland 25 1.2k 1.1× 415 0.7× 886 1.8× 274 0.6× 654 2.0× 101 2.1k
Sarah M.R. Wille Belgium 27 947 0.9× 341 0.6× 227 0.5× 367 0.8× 238 0.7× 70 1.9k
Munehiro Katagi Japan 32 1.6k 1.6× 642 1.1× 768 1.6× 789 1.8× 531 1.6× 118 2.7k
Tooru Kamata Japan 23 911 0.9× 258 0.4× 500 1.0× 271 0.6× 319 1.0× 53 1.2k
Folker Westphal Germany 25 1.2k 1.1× 323 0.6× 777 1.6× 281 0.6× 478 1.4× 74 1.7k
Hajime Miyaguchi Japan 23 763 0.7× 440 0.7× 251 0.5× 480 1.1× 182 0.5× 112 1.7k

Countries citing papers authored by Kei Zaitsu

Since Specialization
Citations

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

Fields of papers citing papers by Kei Zaitsu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kei Zaitsu

This figure shows the co-authorship network connecting the top 25 collaborators of Kei Zaitsu. A scholar is included among the top collaborators of Kei Zaitsu 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 Kei Zaitsu. Kei Zaitsu 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.
Taniguchi, Masaru, et al.. (2025). Optimal machine learning algorithm for prediction model for retention times of plant toxins. Food Control. 174. 111251–111251. 2 indexed citations
2.
Taniguchi, Masaru, et al.. (2024). Development of a rapid-fire drug screening method by probe electrospray ionization tandem mass spectrometry for human urine (RaDPi-U). Analytical and Bioanalytical Chemistry. 416(10). 2503–2513. 2 indexed citations
3.
Iguchi, Akira, Nanami Mizusawa, Yoshikazu Ohno, et al.. (2024). Single-polyp metabolomics for coral health assessment. Scientific Reports. 14(1). 3369–3369. 2 indexed citations
4.
Yamamoto, Kenta, Takashi Honda, Asuka Kato, et al.. (2023). Impact of elobixibat on liver tumors, microbiome, and bile acid levels in a mouse model of nonalcoholic steatohepatitis. Hepatology International. 17(6). 1378–1392. 3 indexed citations
5.
Zaitsu, Kei, et al.. (2023). High-throughput analysis of anthocyanins in horticultural crops using probe electrospray ionization tandem mass spectrometry (PESI/MS/MS). Horticulture Research. 10(4). uhad039–uhad039. 6 indexed citations
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Taki, Kentaro, Kazuya Kitamori, Hisao Naito, et al.. (2021). One-Pot Extraction and Quantification Method for Bile Acids in the Rat Liver by Capillary Liquid Chromatography Tandem Mass Spectrometry. ACS Omega. 6(12). 8588–8597. 4 indexed citations
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Matsuta, Shuntaro, Noriaki Shima, Hidenao Kakehashi, et al.. (2018). Metabolism of α-PHP and α-PHPP in humans and the effects of alkyl chain lengths on the metabolism of α-pyrrolidinophenone-type designer drugs. Forensic Toxicology. 36(2). 486–497. 19 indexed citations
11.
Kusano, Maiko, Kei Zaitsu, Kentaro Taki, et al.. (2017). Fatal intoxication by 5F–ADB and diphenidine: Detection, quantification, and investigation of their main metabolic pathways in humans by LC/MS/MS and LC/Q‐TOFMS. Drug Testing and Analysis. 10(2). 284–293. 61 indexed citations
12.
Kusano, Maiko, Kei Zaitsu, Kentaro Taki, et al.. (2016). Development of a mass spectrometric hydroxyl‐position determination method for the hydroxyindole metabolites of JWH‐018 by GC‐MS/MS. Journal of Mass Spectrometry. 51(5). 350–357. 8 indexed citations
13.
Kusano, Maiko, Kei Zaitsu, Hiroshi Nakayama, et al.. (2015). Positional isomer differentiation of synthetic cannabinoid JWH‐081 by GC‐MS/MS. Journal of Mass Spectrometry. 50(3). 586–591. 28 indexed citations
14.
Matsuta, Shuntaro, Noriaki Shima, Hiroe Kamata, et al.. (2015). Metabolism of the designer drug α-pyrrolidinobutiophenone (α-PBP) in humans: Identification and quantification of the phase I metabolites in urine. Forensic Science International. 249. 181–188. 25 indexed citations
15.
Matsuta, Shuntaro, Munehiro Katagi, Hiroshi Nishioka, et al.. (2014). Structural characterization of cathinone-type designer drugs by EI mass spectrometry. 19(2). 77–89. 20 indexed citations
16.
Zaitsu, Kei, Munehiro Katagi, Noriaki Shima, et al.. (2011). Comprehensive Analytical Methods of the Synthetic Cannabinoids Appearing In the Illicit Drug Market. 16(2). 73–90. 4 indexed citations
17.
Miki, Akihiro, Munehiro Katagi, Tooru Kamata, et al.. (2011). MALDI‐TOF and MALDI‐FTICR imaging mass spectrometry of methamphetamine incorporated into hair. Journal of Mass Spectrometry. 46(4). 411–416. 67 indexed citations
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Zaitsu, Kei, Munehiro Katagi, Hiroe Kamata, et al.. (2009). Determination of the metabolites of the new designer drugs bk-MBDB and bk-MDEA in human urine. Forensic Science International. 188(1-3). 131–139. 76 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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