Determination of and its metabolites in human plasma and urine by column-switching high-performance liquid chromatography with ultraviolet detection

Ultramicrodetermination of cyanocobalamin in elemental diet by solid-phase extraction and high-performance liquid chromatography with visible detection

Hiroshi Iwase · Journal of Chromatography A · 1992 · 36 citations

Agriculture, Nutrition, Nutritional Sciences +14

Structure determination of metabolites isolated from urine and bile after administration of AY4166, a novel d-phenylalanine-derivative hypoglycemic agent

Hiroko Takesada, Keizo Matsuda, R. Ohtake et al. · Bioorganic & Medicinal Chemistry · 1996 · 30 citations

Medicine, Biochemistry, Pharmacology +12

Automated determination of drugs in serum by columnswitching high-performance liquid chromatography II. Separation of theophylline and its metabolites

Kojiro Matsumoto, Haruhito Kikuchi, Hisami Iri et al. · Journal of Chromatography B Biomedical Sciences and Applications · 1988 · 26 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +11

Determination of N-(trans-4-isopropylcyclohexylcarbonyl)-d-phenylalanine in human plasma by solid-phase extraction and column-switching high-performance liquid chromatography with ultraviolet detection

Ichiro Ono, Keizo Matsuda, Sachiko Kanno · Journal of Chromatography B Biomedical Sciences and Applications · 1996 · 15 citations

Pharmacy, Biochemistry, Pharmaceutical Analysis +12

Separation of a New Antidiabetic Agent, N-(Trans-4-Isopropylcyclohexylcarbonyl)-D-Phenylalanine, and its Isomers by Chiral High-Performance Liquid Chromatography

Hisashi Shinkai, Masahiko Nashikawa, Yusuke Sato · Journal of Liquid Chromatography · 1989 · 12 citations

Pharmacy, Medicinal Chemistry, Pharmacology +17