Ryuichi Kitamura

Determination of S-1 (combined drug of tegafur, 5-chloro-2,4- dihydroxypyridine and potassium oxonate and 5-fluorouracil in human plasma and urine using high-performance liquid chromatography and gas chromatography-negative ion chemical ionization mass spectrometry

Eiji Matsushima, Kozo Yoshida, Ryuichi Kitamura et al. · Journal of Chromatography B Biomedical Sciences and Applications · 1997 · 91 citations

5-Chloro-2,4- Dihydroxypyridine, Medicinal Chemistry, Drug Purity +17

Limited Capacity of Human Adult Islets Expanded In Vitro to Redifferentiate Into Insulin-Producing β-Cells

Ayse G. Kayali, Luis Flores, Ana D. Lopez et al. · Diabetes · 2007 · 68 citations · Full text

Involvement of Cyclo-Oxygenase-2 in Osteoclast Formation and Bone Destruction in Bone Metastasis of Mammary Carcinoma Cell Lines

Katsuhiro Ono, Takuhiko Akatsu, Takehiko Murakami et al. · Journal of Bone and Mineral Research · 2002 · 60 citations

Determination of Diamino- and Aminopyrenes by High Performance Liquid Chromatography with Chemiluminescence Detection

Kazuichi Hayakawa, Ryuichi Kitamura, Mizuka Butoh et al. · Analytical Sciences · 1991 · 55 citations · Full text

Chemical Measurement, Biochemistry, Gas Chromatography +8

Improvement in precision of the liquid chromatographic–electrospray ionization tandem mass spectrometric analysis of 3′-C-ethynylcytidine in rat plasma

Ryuichi Kitamura, Kazuaki Matsuoka, Eiji Matsushima et al. · Journal of Chromatography B Biomedical Sciences and Applications · 2001 · 28 citations

Liquid Chromatographic–electrospray Ionization, Biochemistry, Medicine +9