Keizo Watanabe
University of Tokyo
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Publication
Featured researches published by Keizo Watanabe.
Journal of Chromatography B: Biomedical Sciences and Applications | 1981
Kugako Matsumura; Osamu Kubo; Toshiko Sakashita; Yumiko Adachi; Hideo Kato; Keizo Watanabe; Masaaki Hirobe
A method is described for the simple and simultaneous determination of tulobuterol and its metabolites in human urine by gas chromatography--mass spectrometry. Quantification was achieved by single-ion monitoring at m/e 86 derived from trimethylsilyl-tulobuterol and its metabolites using a column packed with a mixed phase, 2% OV-1--2% QF-1 (1 : 1, w/w). The detection limits were estimated to be 2 ng/ml in urine for tulobuterol and 5 ng/ml for metabolites, respectively.
Chemical & Pharmaceutical Bulletin | 1980
Naoki Miyata; Kiyoko Uba; Keizo Watanabe; Masaaki Hirobe
Journal of Chromatography B: Biomedical Sciences and Applications | 1982
Kugako Matsumura; Osamu Kubo; Toshitaka Tsukada; Kazunori Nishide; Hideo Kato; Keizo Watanabe; Masaaki Hirobe
Japanese Journal of Pharmacology | 1981
Issei Takayanagi; Naoki Miyata; Kiyoko Uba; Keizo Watanabe; Masaaki Hirobe
Journal of Pharmaceutical Sciences | 1983
Kugako Matsumura; Osamu Kubo; Toshiko Sakashita; Hideo Kato; Keizo Watanabe; Masaaki Hirobe
Japanese Journal of Pharmacology | 1982
Issei Takayanagi; Fukio Konno; Naoki Miyata; Keizo Watanabe; Masaaki Hirobe
Chemical & Pharmaceutical Bulletin | 1979
Kiyoko Uba; Naoki Miyata; Keizo Watanabe; Masaaki Hirobe
Chemical & Pharmaceutical Bulletin | 1980
Kiyoko Uba; Naoki Miyata; Keizo Watanabe; Masaaki Hirobe
Journal of pharmacobio-dynamics | 1981
Naoki Miyata; Kiyoko Uba; Keizo Watanabe; Masaaki Hirobe
Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1982
Yukiko Makino; Yukio Matsubara; Keizo Watanabe; Masaaki Hirobe
