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Reagent-injection spectrophotometric determination of citric acid in beverages and pharmaceutical formulations based on its inhibitory effect on the iron(III) catalytic oxidation of 2,4-diaminophenol by hydrogen peroxideDemetrius G Themelis; Paraskevas D Tzanavaras · 2001
Colorimetric micro-determination of titanium dioxide in foods.HAMANO, Takashi; MITSUHASHI, Yukimasa; Aoki, Nobumi; YAMAMOTO, Susumu; TSUJI, Sumiko; ITO, Yoshio; OJI, Yoshikiyo · NIPPON SHOKUHIN KOGYO GAKKAISHI · 1990
Enzymic method for the spectrophotometric determination of aspartame in beveragesHamano, Takashi; Mitsuhashi, Yukimasa; Aoki, Nobumi; Yamamoto, Susumu; Tsuji, Sumiko; Ito, Yoshio; Oji, Yoshikiyo · The Analyst · 1990
Determination of ethylenediaminetetra-acetic acid in foods by colorimetry.HAMANO, Takashi; MITSUHASHI, Yukimasa; YAMAMOTO, Susumu; MATSUKI, Yukio; TONOGAI, Yasuhide; NAKAMURA, Keizo; ITO, Yoshio · NIPPON SHOKUHIN KOGYO GAKKAISHI · 1987
Amperometric determination of p-hydroxybenzoic acid esters using an oxygen electrodeHamano, Takashi; Mitsuhashi, Yukimasa; Aoki, Nobumi; Yamamoto, Susumu; Oji, Yoshikiyo · The Analyst · 1988
High-performance liquid chromatographic assay of chondroitin sulphate in food productsHamano, Takashi; Mitsuhashi, Yukimasa; Acki, Nobumi; Yamamoto, Susumu; Tsuji, Sumiko; Ito, Yoshio; Oji, Yoshikiyo · The Analyst · 1989
Simultaneous determination of niacin and niacinamide in meats by high-performance liquid chromatographyTakashi Hamano; Yukimasa Mitsuhashi; Nobumi Aoki; Susumu Yamamoto; Yoshikiyo Oji · 1988
Determination of glycerol in foods by high-performance liquid chromatography with fluorescence detectionTakashi Hamano; Yukimasa Mitsuhashi; Nobumi Aoki; Susumu Yamamoto; Sumiko Tsuji; Yoshio Ito; Yoshikiyo Oji · 1991