BUNSEKI KAGAKU

Vol. 54 No. 8

August, 2005

Table of Contents

Accounts

Ion Chromatography for Rapid and Sensitive Determination of Inorganic Sulfur Anions in Their Mixtures

Yasuyuki Miura 651

Determination of Trace Inorganic Anions in Seawater by Capillary Zone Electrophoresis with Artificial Seawater as Background Electrolyte

Keiichi Fukushi, Kuriko Yokota, Yusuke Nakayama, Nobuhiro Ishio and Takashi Miyado 665

Research Papers

Reversed-Phase High-Performance Liquid Chromatographic Determination of Iodide Ion without Using Ion-Pairing Reagents

Masahiro Miyashita and Yoshiyuki Seyama 679

Determination of Nitroarenes and 3-Nitrobenzanthrone in Atmospheric Particulate Matter by Gas Chromatography/Tandem Mass Spectrometry with Negative Ion Chemical Ionization

Youhei Kawanaka, Kazuhiko Sakamoto, Ning Wang and Sun-Ja Yun 685

Precise Spectrophotometric Determination of Iron in Iron Ores by Flow Injection Analysis

Kunihiro Watanabe, Naoki Imazato and Masayuki Itagaki 693

Technical Papers

Determination of Trace Amount of Diphenylarsinic Acid in Well Water and Seawater by Solid-Phase Extraction-Graphite-Furnace Atomic Absorption Spectrometry

Tatsumi Kitamura, Seiichi Ueno, Miki Nakamura, Miyako Sibata, Toshikazu Kaise and Mutsuo Ishizaki 701

Development of Supercritical Carbon Dioxide Extraction with a Solid-Phase Trap for Dioxins in Soil

Takashi Miyawaki, Ayato Kawashima and Katsuhisa Honda 707

Precise and Simultaneous Determination of Surfactants by ¹H Nuclear Magnetic Resonance Using an Internal Standard

Ryo Koike, Shoichi Jo, Mikiko Azuma and Tatsushi Wakisaka 715

Notes

Lucigenin Chemiluminescence in Mixed-Surfactant Vesicles Formed from Aqueous Mixtures of Octyltrimethylammonium Chloride and Sodium Dodecanoate

Naoya Kimura, Ken-ichi Ohno and Masaaki Yamada 723

Analytical Reports

Proficiency Testing for Metal Impurities Analysis at the ppb Level by Comparisons between Japan and U.S. Laboratories of a Private Company

Susumu Sakata, Katsuhiro Nakagawa, Tadanobu Arimura, Hisao Nakamura, Greg Johnson, Dan Wistrand, Tetsuya Kimijima, Masaru Yamazawa and Kazuhiro Shikakume 727

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