Author

Norihisa Kawamura

Observed names: N Kawamura, N. Kawamura, NORIHISA KAWAMURA, Norihisa KAWAMURA, Norihisa. Kawamura

Institution: Aichi Prefectural Institute of Public Health

Observed institution: Aichi Prefectural Institute of Public Health

OpenAlex ID: A5111427684

Photodecomposition products of tetracycline in aqueous solution

1989 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Agricultural and Food Chemistry · 106

Simple method for the analysis of food dyes on reversed-phase thin-layer plates

1987 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Chromatography A · 66

Identification of unlawful food dyes by thin-layer chromatography-fast atom bombardment mass spectrometry

1994 · ]Hisao Oka, Yoshitomo Ikaia, et al. · Journal of Chromatography A · 63

Improvement of chemical analysis of antibiotics

1989 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Chromatography A · 57

Small-Scale Survey of Organotin Compounds in Household Commodities

1993 · Sadaji Yamada, Yuko Fujii, et al. · Journal of AOAC International · 54

Improvement of chemical analysis of antibiotics

1991 · Yoshitomo Ikai, Hisao Oka, et al. · Journal of Chromatography A · 44

Improvement of chemical analysis of antibiotics

1989 · Yoshitomo Ikai, Hisao Oka, et al. · Journal of Chromatography A · 39

Direct interfacing of high-speed countercurrent chromatography to frit electron ionization, chemical ionization, and fast atom bombardment mass spectrometry

1991 · Hisao. Oka, Yoshitomo. Ikai, et al. · Analytical Chemistry · 35

Improvement of chemical analysis of antibiotics

1987 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Chromatography A · 34

Improvement of chemical analysis of antibiotics

1987 · Yoshitomo Ikai, Hisao Oka, et al. · Journal of Chromatography A · 32

Improvement of chemical analysis of antibiotics

1987 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Chromatography A · 27

Total Structures of Colistin Minor Components.

1998 · YOSHITOMO IKAI, HISAO OKA, et al. · The Journal of Antibiotics · 25

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Development of a condensation technique for thin‐layer chromatography/fast‐atom bombardment mass spectrometry of non‐visible compounds

1992 · Hisao Oka, Yoshitomo Ikai, et al. · Rapid Communications in Mass Spectrometry · 22

Improvement of chemical analysis of antibiotics

1987 · Hisao Oka, Yoshimoto Ikai, et al. · Journal of Chromatography A · 22

Relationship between chlordane and its metabolites in blood of pest control operators and spraying conditions

1986 · Isao Saito, Norihisa Kawamura, et al. · International Archives of Occupational and Environmental Health · 22

Simultaneous determination of nine food additives using high-performance liquid chromatography

1988 · Yoshitomo Ikai, Hisao Oka, et al. · Journal of Chromatography A · 20

Isolation of Colistin A and B Using High-Speed Countercurrent Chromatography

1998 · Y. Ikai, H. Oka, et al. · Journal of Liquid Chromatography & Related Technologies · 19

Identification of food dyes by TLC/SIMS with a condensation technique

1989 · Katsuyoshi Masuda, Ken‐Ichi Harada, et al. · Organic Mass Spectrometry · 19

Improvement of chemical analysis of antibiotics

1988 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Chromatography A · 17

Determination of Geosmin and 2-Methylisoborneol in Water using Solid Phase Extraction and Headspace-GC/MS.

2003 · Yoshitomo IKAI, Sachiyasu HONDA, et al. · Journal of the Mass Spectrometry Society of Japan · 13

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Purification of food color red no. 106 (acid red) using high-speed counter-current chromatography

1991 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Chromatography A · 13

Mechanism of an Early Lysis by Fatty Acids from Axenic Phormidium tenue (Musty Odor-Producing Cyanobacterium) and Its Growth Prolongation by Bacteria.

1994 · Naoki YAMADA, Nobutoshi MURAKAMI, et al. · Biological and Pharmaceutical Bulletin · 12

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Limited Survey of Residual Tetracyclines in Tissues Collected from Diseased Animals in Aichi Prefecture, Japan

1991 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of AOAC INTERNATIONAL · 9

Optimization of a high speed countercurrent chromatograph for analytical separations

1991 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of High Resolution Chromatography · 8

Evaluation of Analytical Countercurrent Chromatographs: High-Speed Countercurrent Chromatograph-4000 Vs. Analytical Toroidal Coil Centrifuge

1990 · Hisao Oka, Yoshitomo Ikai, et al. · Journal of Liquid Chromatography · 7

Works count: 45

Citation count: 834

H-index: 18

I10-index: 22