Tetsuharu Iwata

6,7-Dimethoxy-1-methyl-2(1H)-quinoxalinone-3-propionylcarboxylic acid hydrazide: a highly sensitive fluorescence derivatisation reagent for carboxylic acids in high-performance liquid chromatography

Masatoshi Yamaguchi, Tetsuharu Iwata, Kouji Inoue et al. · The Analyst · 1990 · 49 citations

Lipid Analysis, Engineering, -Quinoxalinone-3-propionylcarboxylic Acid Hydrazide +22

3,4-dihydro-6,7-dimethoxy-4-methyl-3-oxoquinoxaline-2-carbonyl chloride as a sensitive fluorescence derivatization reagent for amines in liquid chromatography

Junichi Ishida, Masatoshi Yamaguchi, Tetsuharu Iwata et al. · Analytica Chimica Acta · 1989 · 45 citations

Derivative (Chemistry), Engineering, Biochemistry +10

3,4-dihydro-6,7-dimethoxy-4-methyl-3-oxo-quinoxaline-2-carbonyl chloride as a highly sensitive fluorescence derivatization reagent for alcohols in high-performance liquid chromatography

Tetsuharu Iwata, Masatoshi Yamaguchi, Shuuji Hara et al. · Journal of Chromatography A · 1986 · 36 citations

Engineering, Biochemistry, Separation Science +11

Simple and highly sensitive determination of free fatty acids in human serum by high performance liquid chromatography with fluorescence detection

Tetsuharu Iwata, Kouji Inoue, Masaru Nakamura et al. · Biomedical Chromatography · 1992 · 35 citations

Lipid Analysis, Fluorescence Detection, Engineering +15

3,4-dihydro-6,7-dimethoxy-4-methyl-3-oxo-qinoxaline-2-carbonyl azide as a highly sensitive fluorescence derivatization reagent for primary, secondary and tertiary alcohols in high-performance liquid chromatography

Masatoshi Yamaguchi, Tetsuharu Iwata, Masaru Nakamura et al. · Analytica Chimica Acta · 1987 · 31 citations

3,4-Dihydro-6,7-dimethoxy-4-methyl-3-oxo-qinoxaline-2-carbonyl Azide, Engineering, Biochemistry +11