T. Kagami

Mass spectrometric analysis of tetracycline antibiotics in foods.

K. Harada, Y. Ito, H. Oka, 1998, Journal of chromatography. A.

Analysis of β-Carotene and Paprika Color in Foods Using Reversed-phase Thin-layer Chromatography/Scanning Densitometry

Yuko Ito, H. Oka, E. Ueno, 1999 .

Analysis of lac and cochineal colors in foods using reversed phase thin layer chromatography/scanning densitometry

Yuko Ito, H. Oka, Y. Miyazaki, 1999 .

Separation of lac dye components by high-speed counter-current chromatography.

J. Hayakawa, H. Nakazawa, H. Odani, 1998, Journal of chromatography. A.

Application of ion-exchange cartridge clean-up in food analysis III. Determination of benzylpenicillin, phenoxymethyl-penicillin, oxacillin, cloxacillin, nafcillin and dicloxacillin in bovine liver and kidney by liquid chromatography with ultraviolet detection.

H. Matsumoto, Y. Ito, H. Oka, 2000, Journal of chromatography. A.

Application of ion-exchange cartridge clean-up in food analysis. I. Simultaneous determination of thiabendazole and imazalil in citrus fruit and banana using high-performance liquid chromatography with ultraviolet detection.

J. Hayakawa, Y. Ito, H. Oka, 1998, Journal of chromatography. A.

Application of ion-exchange cartridge clean-up in food analysis. II. Determination of benzylpenicillin, phenoxymethylpenicillin, oxacillin, cloxacillin, nafcillin and dicloxacillin in meat using liquid chromatography with ultraviolet detection.

Y. Ito, H. Oka, Y. Ikai, 1999, Journal of chromatography. A.