Vol. 4 8 No. 2

February, 1999

Review

Adsorptive stripping voltammetry of metal ions (Review)

Hiromiti Sakamoto 137

Ion association and its reaction mechanism (Review)

Shoji Motomizu 151

Accounts

Development of food analytical systems based on the use of immobilized biocatalysts

Hiroyuki Ukeda 183

Capillary electrophoretic behavior and conformational analysis of triplet-repeat DNA

Yuriko Kiba and Yoshinobu Baba 193

Synthesis of spherical porous ceramics particles

Hiroshi Yamashita 205

Adsorption of phosphate with activated carbon loaded with zirconium and its application to a simple in situ preconcentration method for phosphate in environmental water samples

Minoru Okumura, Kaoru Fujinaga and Yasushi Seike 215

Original Papers

Prediction of chemical oxygen demand by ultra-violet visible absorption spectrum-partial least squares

Yasunobu Kato, Tetsu Kumagai, Shigeroku Yamaguchi and Hiroshi Nishioka 225

Effect of tiron on the color-fading rate of Hydroxy Naphthol Blue and its application to the catalytic determination of cobalt(II)

Kunihiro Watanabe, Fumio Nakadai, Manami Sakiyama, Kazue Yamaguchi and Masayuki Itagaki 231

Separation of hydrophobic compounds by nonaqueous micellar electrokinetic chromatography using formamide solvent

Masamitsu Nakagawa, Jin-Ming Lin, Tatsuro Nakagama, Katsumi Uchiyama and Toshiyuki Hobo 239

Solid-phase extraction of mono- and di-substituted organotin compounds in seawater

Kunikazu Ide, Muneyuki Kohri, Koichi Sato, Yoshinori Inoue and Haruno Okochi 245

Technical Papers

Development of a new gas-permeation system and its application to the spectrophotometric determination of ammonium ion by FIA

Keiro Higuchi, Akiko Inoue, Tomonori Tsuboi and Shoji Motomizu 253

Notes

Preconcentration of trace cadmium from water samples using 4-(2-Pyridylazo)-resorcinol/Capriquat loaded silica gel

Kimitoshi Sato, Mitsuhisa Monden and Takashi Goto 261

Technical Letters

Co-operative study for precision and limit of detection in HPLC analysis

Masaaki Ishikawa, Rieko Matsuda, Yuzuru Hayashi, Chikako Yomota, Akira Yamaguchi, Kazuo Iwaki, Hirotaka Obana, Moritoshi Sato, Tetsuya Yoshida and Masahiko Tsuji 265

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