BUNSEKI KAGAKU

Vol. 56 No. 3

March, 2007

Table of Contents

Research Papers
Fluorometric Determination of Boron Using Boron-2,3-Dihydroxynaphthalene-Insulin Ternary Complex Formation by Flow Injection Analysis
Junichi Iwata, Yasuki Kimishima, Kunihiro Watanabe, Isao Shitanda and Masayuki Itagaki 135
Convenient Characterization of Humic Substances in Deep Groundwaters by Three-Dimensional Excitation Emission Matrix Spectroscopy
Seiya Nagao and Teruki Iwatsuki 143
Synchronous First-Derivative Fluorescence Determination of Boron with 1,8-Dihydroxynaphtalene
Kunihiro Watanabe, Yasuki Kimishima, Junichi Iwata, Isao Shitanda and Masayuki Itagaki 151
Evaluation of On-Column Dissociation Rate Constant of Ni(II) Complex with Pyridine-2-aldehydebenzoylhydrazone Using High Performance Liquid Chromatographic Kinetic Analysis
Toru Takahashi, Yuka Takehara and Hitoshi Hoshino 159
Technical Papers
Spectrophotometric Determination of Nitrate-Nitrogen in Groundwaters Using Hydrophobic Reagent Anisole
Yasuhiro Gou 167
Determination of Sodium Chondroitin Sulfate in Tablets Based on Precipitate Formation with Alcian Blue
Tomoko Funaoka, Toshihiro Tanizawa, Hiroyuki Muro and Tadashi Makino 173
Application of Improved Dumas Method to the Determination of Total Nitrogen in Soy Sauce
Shintaro Nozawa, Hirotaka Kasama, Tadanao Suzuki and Akemi Yasui 179
Notes
Detection of Aluminum-Citrate-Phosphate Ternary Complexes in Aqueous Solution by 27Al and 31P NMR
Akiko Yamaguchi, Yutaka Tsuji, Shuqin Bai, Yoshihiro Okaue and Takushi Yokoyama 185
Separation of Pyridylaminated Oligosaccharides by High Performance Liquid Chromatography on a C30 Reversed-Phase Column
Yusuke Suzuki, Kozo Miseki, Shuichi Shimma, Mitsutoshi Setou, Akemi Suzuki, Norikazu Nagae and Minoru Suzuki 191
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