Hirochika Yokosu

Thallium(I)-selective membrane electrodes based on calix[6]arene or calix[5]arene derivatives

Takashi Katsu, Kazuyuki Ido, Kiyoka Takaishi et al. · Sensors and Actuators B Chemical · 2002 · 69 citations

Engineering, Chemical Engineering, Chemistry +11

A Novel electrophilic reagent, 4‐(<i>N</i>‐chloroformylmethyl‐<i>N</i>‐methyl)amino‐7‐<i>N</i>,<i>N</i>‐dimethylaminosulphonyl‐2, 1,3‐benzoxadiazole (DBD‐COCI) for fluorometric detection of alcohols, phenols, amines and thiols

Kazuhiro Imai, Takeshi Fukushima, Hirochika Yokosu · Biomedical Chromatography · 1994 · 30 citations

Natural Sciences, Chemistry, Biosensors +9

N-(4-nitro-2,1,3-benzoxadiazoyl-7-yl)-N-methyl-2-aminoacetohydrazide (NBD-CO-Hz) as a precolumn fluorescent derivatization reagent for carboxylic acids in high-performance liquid chromatography

Tomofumi Santa, A. Takeda, Seiichi Uchiyama et al. · Journal of Pharmaceutical and Biomedical Analysis · 1998 · 25 citations

Natural Sciences, Biochemistry, Analytical Chemistry +13

A Fluorogenic Reagent, 7-Phenylsulfonyl-4-(2,1,3-benzoxadiazolyl) Isocyanate for Alcohols, with Development Based on the Empirical Method for Prediction

Seiichi Uchiyama, Tomofumi Santa, Sachiko Suzuki et al. · Analytical Chemistry · 1999 · 25 citations

Natural Sciences, Chemistry, Medicinal Chemistry +12

4-N,N-Dimethylaminosulfonyl-7-N-(2-aminoethyl)amino-benzofurazan as a new precolumn fluorescence derivatization reagent for carboxylic acids (fatty acids and drugs containing a carboxyl moiety) in liquid chromatography

Pablo Prados, Takeshi Fukushima, Tomofumi Santa et al. · Analytica Chimica Acta · 1997 · 23 citations

Pharmacy, Medicinal Chemistry, Pharmaceutical Analysis +13