Kenji Tsujikawa

2.6k total citations
145 papers, 2.1k citations indexed

About

Kenji Tsujikawa is a scholar working on Toxicology, Spectroscopy and Cellular and Molecular Neuroscience. According to data from OpenAlex, Kenji Tsujikawa has authored 145 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 95 papers in Toxicology, 52 papers in Spectroscopy and 32 papers in Cellular and Molecular Neuroscience. Recurrent topics in Kenji Tsujikawa's work include Forensic Toxicology and Drug Analysis (95 papers), Analytical Chemistry and Chromatography (43 papers) and Psychedelics and Drug Studies (32 papers). Kenji Tsujikawa is often cited by papers focused on Forensic Toxicology and Drug Analysis (95 papers), Analytical Chemistry and Chromatography (43 papers) and Psychedelics and Drug Studies (32 papers). Kenji Tsujikawa collaborates with scholars based in Japan, United States and Lithuania. Kenji Tsujikawa's co-authors include Yuko Iwata, Tatsuyuki Kanamori, Kenji Kuwayama, Hajime Miyaguchi, Hiroyuki Inoue, Tadashi Yamamuro, Hiroyuki Inoue, Hiroki Segawa, Tohru Kishi and Hiroyuki Inoue and has published in prestigious journals such as SHILAP Revista de lepidopterología, Biochemical and Biophysical Research Communications and Journal of Chromatography A.

In The Last Decade

Kenji Tsujikawa

136 papers receiving 2.0k citations

Peers

Kenji Tsujikawa
Kenji Kuwayama Japan
Tatsuyuki Kanamori Japan
Akihiro Miki Japan
Sabina Strano Rossi Italy
Hajime Miyaguchi Japan
Munehiro Katagi Japan
Kei Zaitsu Japan
Sarah M.R. Wille Belgium
Jack DeRuiter United States
Yuko Iwata Japan
Kenji Kuwayama Japan
Kenji Tsujikawa
Citations per year, relative to Kenji Tsujikawa Kenji Tsujikawa (= 1×) peers Kenji Kuwayama

Countries citing papers authored by Kenji Tsujikawa

Since Specialization
Citations

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

Fields of papers citing papers by Kenji Tsujikawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kenji Tsujikawa

This figure shows the co-authorship network connecting the top 25 collaborators of Kenji Tsujikawa. A scholar is included among the top collaborators of Kenji Tsujikawa 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 Kenji Tsujikawa. Kenji Tsujikawa 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.
Tsujikawa, Kenji, Yuki Okada, Hiroki Segawa, et al.. (2025). Development of a novel Δ9-THC-specific color test reagent. Forensic Toxicology. 43(2). 318–332.
2.
Segawa, Hiroki, Yuko Iwata, Yuki Okada, et al.. (2024). Low-frequency Raman spectrum of methamphetamine hydrochloride and its alterations induced by impurities. Forensic Chemistry. 40. 100601–100601.
3.
Kuwayama, Kenji, Hajime Miyaguchi, Tatsuyuki Kanamori, et al.. (2024). Development of a method to evaluate the effects of external environments on drug stability in nails using micro‐segmental analysis. Drug Testing and Analysis. 17(2). 188–197. 1 indexed citations
4.
Segawa, Hiroki, Tadashi Yamamuro, Kenji Kuwayama, et al.. (2024). Synthesis and analytical characterization of 1‐(2‐thienoyl)‐6‐allyl‐nor‐d‐lysergic acid diethylamide (1T‐AL‐LAD). Drug Testing and Analysis. 17(4). 494–501. 5 indexed citations
5.
Kanamori, Tatsuyuki, Hiroki Segawa, Tadashi Yamamuro, et al.. (2024). Metabolism of highly potent synthetic opioid nitazene analogs: N‐ethyl‐N‐(1‐glucuronyloxyethyl) metabolite formation and degradation to N‐desethyl metabolites during enzymatic hydrolysis. Drug Testing and Analysis. 17(2). 238–249. 9 indexed citations
6.
7.
Segawa, Hiroki, Yuko Iwata, Yuki Okada, et al.. (2023). Rapid enantiomeric analysis of zopiclone in serum by supercritical fluid chromatography–tandem mass spectrometry. Journal of Forensic Sciences. 68(4). 1352–1358. 3 indexed citations
8.
Kuwayama, Kenji, Hajime Miyaguchi, Tatsuyuki Kanamori, et al.. (2022). Micro-segmental hair analysis: detailed procedures and applications in forensic toxicology. Forensic Toxicology. 40(2). 215–233. 20 indexed citations
9.
Kuwayama, Kenji, Hajime Miyaguchi, Tatsuyuki Kanamori, et al.. (2021). Development of an improved method to estimate the days of continuous drug ingestion, based on the micro‐segmental hair analysis. Drug Testing and Analysis. 13(7). 1295–1304. 9 indexed citations
10.
11.
Kuwayama, Kenji, Hajime Miyaguchi, Tatsuyuki Kanamori, et al.. (2020). Measurement of three-dimensional distributions of drugs in nails using liquid chromatography/tandem mass spectrometry after micro-segmentation to elucidate drug uptake routes. Analytica Chimica Acta. 1108. 89–97. 12 indexed citations
12.
Kuwayama, Kenji, Hajime Miyaguchi, Yuko Iwata, et al.. (2018). Estimation of day of death using micro-segmental hair analysis based on drug use history: a case of lidocaine use as a marker. International Journal of Legal Medicine. 133(1). 117–122. 13 indexed citations
13.
Iwata, Yuko, Tatsuyuki Kanamori, Kenji Tsujikawa, et al.. (2015). Differentiation of regioisomeric chloroamphetamine analogs using gas chromatography–chemical ionization-tandem mass spectrometry. Forensic Toxicology. 33(2). 338–347. 18 indexed citations
14.
Kanda, Koji, Kenji Tsujikawa, Kenji Kuwayama, et al.. (2014). Differentiation of regioisomeric methylamphetamines by GC/MS. 19(2). 111–119. 4 indexed citations
15.
Kuwayama, Kenji, Kenji Tsujikawa, Tatsuyuki Kanamori, Yuko Iwata, & Hiroyuki Inoue. (2013). Rapid Morphological Examination of Cannabis and Its Related Herbal Products. 18(2). 135–141. 1 indexed citations
16.
Tsujikawa, Kenji, Kenji Kuwayama, Hajime Miyaguchi, et al.. (2012). Chemical profiling of seized methamphetamine putatively synthesized from phenylacetic acid derivatives. Forensic Science International. 227(1-3). 42–44. 32 indexed citations
17.
Kanamori, Tatsuyuki, Kenji Kuwayama, Kenji Tsujikawa, et al.. (2007). Identification of Simon's Reagent-positive Metabolites in Phenothiazine User's Urine. 12(2). 237–245. 1 indexed citations
18.
Inoue, Hiroyuki, Yuko Iwata, Tatsuyuki Kanamori, et al.. (2004). Analysis of Benzylpiperazine-like Compounds. 9(2). 165–184. 10 indexed citations
19.
Kanamori, Tatsuyuki, Kenji Tsujikawa, Yuko Iwata, et al.. (2004). A study of the metabolism of methamphetamine and 4-bromo-2,5-dimethoxyphenethylamine (2C-B) in isolated rat hepatocytes. Forensic Science International. 148(2-3). 131–137. 33 indexed citations
20.
Kanamori, Tatsuyuki, Kenji Tsujikawa, Yuko Iwata, et al.. (2003). Excretory Profile of 4-Bromo-2,5-dimethoxyphenethylamine (2C-B) in Rat.. JOURNAL OF HEALTH SCIENCE. 49(2). 166–169. 23 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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