Youichi Fujii

2.1k total citations · 1 hit paper
99 papers, 1.7k citations indexed

About

Youichi Fujii is a scholar working on Molecular Biology, Analytical Chemistry and Spectroscopy. According to data from OpenAlex, Youichi Fujii has authored 99 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Molecular Biology, 31 papers in Analytical Chemistry and 26 papers in Spectroscopy. Recurrent topics in Youichi Fujii's work include Analytical Chemistry and Chromatography (20 papers), Analytical Methods in Pharmaceuticals (15 papers) and Analytical chemistry methods development (14 papers). Youichi Fujii is often cited by papers focused on Analytical Chemistry and Chromatography (20 papers), Analytical Methods in Pharmaceuticals (15 papers) and Analytical chemistry methods development (14 papers). Youichi Fujii collaborates with scholars based in Japan, United States and Czechia. Youichi Fujii's co-authors include Yasuhiko Higashi, Kazuki Nakao, Yasuhide Yoshimura, Aizo Matsushiro, Teruhisa Tsuzuki, Yohei Tominaga, Kunihiko Sakumi, Masahiro Sekiguchi, Susumu Ichinoki and Mitsuru YAMAZAKI and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Analytical Biochemistry and Journal of Chromatography A.

In The Last Decade

Youichi Fujii

92 papers receiving 1.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Targeted disruption of the Rad51 gene leads to lethality in embryonic mice.

1996 658 citations Youichi Fujii et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Youichi Fujii Japan	17	1.0k	275	255	229	177	99	1.7k
TOSHIO NAMBARA Japan	21	841 0.8×	435 1.6×	205 0.8×	245 1.1×	165 0.9×	220	1.9k
Piero Giansanti Netherlands	19	1.4k 1.3×	548 2.0×	161 0.6×	178 0.8×	54 0.3×	31	2.1k
Václav Martínek Czechia	21	830 0.8×	57 0.2×	358 1.4×	267 1.2×	41 0.2×	54	1.7k
Weiling Li China	25	1.0k 1.0×	249 0.9×	26 0.1×	179 0.8×	151 0.9×	76	2.0k
Riet Hilhorst Netherlands	28	1.4k 1.4×	329 1.2×	33 0.1×	227 1.0×	43 0.2×	85	2.5k
Reiner Aichholz Switzerland	20	586 0.6×	304 1.1×	67 0.3×	138 0.6×	42 0.2×	44	1.4k
Gerrit Hermann Austria	16	961 0.9×	427 1.6×	90 0.4×	145 0.6×	46 0.3×	24	1.3k
Qinhua Chen China	28	1.4k 1.4×	593 2.2×	184 0.7×	74 0.3×	110 0.6×	137	2.3k
Óscar Hernández United States	21	888 0.9×	157 0.6×	29 0.1×	231 1.0×	137 0.8×	44	2.1k
Shaoguang Li China	26	800 0.8×	268 1.0×	63 0.2×	99 0.4×	118 0.7×	60	1.6k

Countries citing papers authored by Youichi Fujii

Since Specialization

Citations

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

Fields of papers citing papers by Youichi Fujii

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Youichi Fujii

This figure shows the co-authorship network connecting the top 25 collaborators of Youichi Fujii. A scholar is included among the top collaborators of Youichi Fujii 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 Youichi Fujii. Youichi Fujii is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Higashi, Yasuhiko & Youichi Fujii. (2010). HPLC-UV ANALYSIS OF EUGENOL IN CLOVE AND CINNAMON OILS AFTER PRE-COLUMN DERIVATIZATION WITH 4-FLUORO-7-NITRO-2,1,3-BENZOXADIAZOLE. Journal of Liquid Chromatography & Related Technologies. 34(1). 18–25. 21 indexed citations

Higashi, Yasuhiko & Youichi Fujii. (2009). HPLC-UV Analysis of Phenol and Chlorophenols in Water After Precolumn Derivatization with 4-Fluoro-7-nitro-2,1,3-benzoxadiazole. Journal of Liquid Chromatography & Related Technologies. 32(16). 2372–2383. 15 indexed citations

Fujii, Youichi, et al.. (2005). Properties of Novel Anti-digoxin Antisera in Radioimmunoassay Using Homologous and Site Heterologous Tritium-Labeled Antigens Involving a [3H]-Leucine Moiety. Biological and Pharmaceutical Bulletin. 28(2). 340–343. 4 indexed citations

Higashi, Yasuhiko, Shota Nakamura, Hiroki Matsumura, & Youichi Fujii. (2005). Simultaneous liquid chromatographic assay of amantadine and its four related compounds in phosphate‐buffered saline using 4‐fluoro‐7‐nitro‐2,1,3‐benzoxadiazole as a fluorescent derivatization reagent. Biomedical Chromatography. 20(5). 423–428. 46 indexed citations

Higashi, Yasuhiko, et al.. (2005). Simultaneous determination of amantadine and rimantadine by HPLC in rat plasma with pre‐column derivatization and fluorescence detection for pharmacokinetic studies. Biomedical Chromatography. 19(9). 655–662. 35 indexed citations

Higashi, Yasuhiko & Youichi Fujii. (2003). Liquid chromatographic determination of 1-adamantanamine and 2-adamantanamine in human plasma after pre-column derivatization with o-phthalaldehyde and 1-thio-β-d-glucose. Journal of Chromatography B. 799(2). 349–354. 16 indexed citations

Higashi, Yasuhiko, Naomi Watanabe, Toshiyuki Sasaki, & Youichi Fujii. (2003). Measurement of β-Methyldigoxin Level in Serum from Patients by Enzyme Immunoassay Using Novel Specific Antiserum with a Phenyl Boric Acid Column. Therapeutic Drug Monitoring. 25(4). 452–456. 1 indexed citations

Fujii, Masahiro, et al.. (2001). Measurement of serum digitoxin in patients by radioimmunoassay using specific antiserum. Clinica Chimica Acta. 314(1-2). 245–247. 8 indexed citations

Fujii, Youichi, et al.. (2001). Selective synthesis of 4-methoxyestrogen from 4-hydroxyestrogen. Steroids. 66(8). 615–621. 2 indexed citations

10.

Fujii, Youichi, et al.. (2000). Preparation of Specific Antisera to Digoxin by Using Digoxin C-3' and C-3" Hemisuccinate-Bovine Serum Albumin Conjugates.. Biological and Pharmaceutical Bulletin. 23(8). 906–910. 7 indexed citations

11.

Fujii, Youichi, et al.. (1996). Quantitative determination of cardiac glycosides in Digitalis lanata leaves by reversed-phase thin-layer chromatography. Journal of Chromatography A. 746(2). 255–260. 11 indexed citations

12.

Fujii, Youichi, et al.. (1995). Quantitative Hplc Analysis of Cardiac Glycosides in Digitalis purpurea Leaves. Journal of Natural Products. 58(6). 897–901. 23 indexed citations

13.

Pettit, George R., Yoshiaki Kamano, Cherry L. Herald, et al.. (1993). Isolation of dolastatins 10–15 from the marine mollusc. Tetrahedron. 49(41). 9151–9170. 124 indexed citations

14.

Fujii, Youichi, et al.. (1990). Separation and determination of lanatosides in Digitalis lanata leaves by high-performance liquid chromatography. Journal of Chromatography A. 508(1). 241–246. 11 indexed citations

15.

Fujii, Youichi, et al.. (1990). Quantitative Determination of Digitalis Glycosides inDigitalis PurpureaLeaves by Reversed-Phase Thin-Layer Chromatography. Journal of Liquid Chromatography. 13(10). 1909–1919. 12 indexed citations

16.

Fujii, Youichi, Yōnosuke Ikeda, & Masakazu Yamazaki. (1990). Determination of Cardiac Glycosides in Digitoxin Tablets and Deslanoside Injections by Micro-HPLC. Journal of Chromatographic Science. 28(6). 288–291. 2 indexed citations

17.

Fujii, Youichi, et al.. (1989). High-performance liquid chromatographic determination of secondary cardiac glycosides in digitalis purpurea leaves. Journal of Chromatography A. 479(2). 319–325. 12 indexed citations

18.

Pettit, George R., Yoshiaki Kamano, Youichi Fujii, et al.. (1981). Marine Animal Biosynthetic Constituents For Cancer Chemotherapy. Journal of Natural Products. 44(4). 482–485. 60 indexed citations

19.

Shimada, Kazutake, et al.. (1977). Studies on cardiotonic steroids from the skin of Japanese toad.. Chemical and Pharmaceutical Bulletin. 25(4). 714–730. 53 indexed citations

20.

Shimada, Kazutake, et al.. (1974). Isolation of a new type bufotoxin from skin of boulenger. Tetrahedron Letters. 15(5). 467–468. 11 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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