BUNSEKI KAGAKU

Vol. 55 No. 4

April, 2006

Table of Contents

Accounts

Highly Selective Derivatization Method Based on Intramolecular Excimer-Forming Fluorescence

Hideyuki Yoshida, Hitoshi Nohta and Masatoshi Yamaguchi 213

Research Papers

High-Performance Liquid Chromatography/Mass Spectrometric Analysis of Middle-Chain Fatty Acids by 2-Nitrophenylhydrazide Derivatization

Saori Hirata and Keiji Gamoh 223

New Laser Ablation System for Quantitative Analysis of Solid Samples by ICP-MS

Tomoharu Ishida, Takanori Akiyoshi, Akiko Sakashita, Satoshi Kinoshiro, Kyoko Fujimoto and Atsushi Chino 229

Sensitive Detection of the Separation of Emulsion by High-Frequency Spectroscopy

Kazuki Kageshima, Takaya Takei and Yoshinori Sugitani 237

Technical Papers

Determination of Trace Amounts of Mercury, Lead and Cadmium in Steels by ICP-MS after Ion Exchange Chromatographic Separation

Kyoko Fujimoto and Atsushi Chino 245

Spectrophotometric Determination of Arsenic in Steels by FIA Using Filter-Tube Concentration Method

Kunihiro Watanabe, Takashi Osawa, Junichi Iwata and Masayuki Itagaki 251

Notes

Determination of Total Nitrogen in River Water Based on Diazotization Coupling Reaction in the Presence of Vanadium Chloride after Oxidative Pretreatment with Peroxodisulfate

Yasuhiro Gou 259

Analytical Reports

Investigation of Ionic Components in the Solution of Treated Fuel Cell Membrane by Capillary Electrophoresis/Mass Spectrometry

Sahori Takeda, Zyun Siroma and Kazuaki Yasuda 263

Digest of Doctoral Dissertation

Improvement of Detection Sensitivity and Selectivity with the Aid of Chemical Reaction in HPLC

Yuko Kitamaki 269

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