BUNSEKI KAGAKU

Vol. 57 No. 6

June, 2008

Table of Contents

Accounts
Development of Certified Reference Materials Accomplished by the Japan Society for Analytical Chemistry
Toshiyuki Hobo, Yoshio Iida, Yo-Ichi Ishibashi, Kensaku Okamoto, Akira Kawase, Toshihiro Nakamura, Hiroshi Nakamura, Shoji Hirai, Rieko Matsuda, Shin-ichi Yamasaki, Chikako Yomota, Akihiro Ono, Kazutoshi Kakita, Mamoru Sakata and Ken-ichi Takimoto 363
Proficiency Testing Provided by the Japan Society for Analytical Chemistry
Masaaki Kubota, Yoshinori Takata, Kiyoshi Koizumi, Youichi Ishibashi, Rieko Matsuda, Yasusuke Matsumoto, Kazuhiro Shikakume, Akihiro Ono, Mamoru Sakata and Kazutoshi Kakita 393
Research Papers
Development of Powdered Polyethylene Reference Materials for X-Ray Fluorescence Analysis of Hazardous Elements
Masashi Kimura, Kazuhiko Nakano and Toshihiro Nakamura 411
Development of ABS Resin Pellet Certified Reference Materials for Heavy Metal Analysis with Respect to RoHS Directive
Masaki Ohata, Masayasu Kurahashi and Akiharu Hioki 417
Proficiency Testing for Determination of Cadmium and Major Inorganic Constituents in Milled Rice Flour
Kumiko Shindoh, Yoshiki Tsukakoshi, Shigehiro Naito, Kazumi Inagaki, Takashi Yarita, Tomohiro Narukawa, Koichi Chiba and Akemi Yasui 427
Technical Papers
Development of Volatile Organic Compound Standard Solutions based on Japan Calibration Service System
Hiroko Ueno, Masaru Yamazawa, Kazuhiro Shikakume and Kin-ichi Tsunoda 439
Method Validation for Determination of Ash in Macaroni Products by Interlaboratory Study
Akiko Hakoda, Yusuke Ii, Tadanao Suzuki and Akemi Yasui 447
Method Validation for Determination of Total Acid in Vinegar Based on Potentiometric Titration by Interlaboratory Study
Yoshiko Hashimoto, Yoshihiro Chuda, Tadanao Suzuki and Akemi Yasui 453
Notes
Potentialstep-Chronoamperometry as a Method for Determining Diffusion Coefficients of High Trueness and of High Precision
Haruko Ikeuchi 461
Determination of Arsenic in White Metals by Distillation-Coulometric Iodometric Titration
Norio Kato and Masaaki Saito 465
Analytical Reports
Development of Certified Reference Materials, Plastics (JSAC 0651-0655) for Determination of Bromine Using X-Ray Fluorescence Analysis
Kazuhiko Nakano, Toshihiro Nakamura, Izumi Nakai, Junji Noro, Akira Kawase, Mikio Hasegawa, Yohichi Ishibashi, Isamu Inamoto, Kazuhuyu Sudou, Masaru Kozaki, Satoshi Turuta, Atsushi Bando, Akihiro Ono, Kazutoshi Kakita, Kenichi Takimoto and Mamoru Sakata 469
Development of Soil Reference Materials Containing Hazardous Metals for X-Ray Fluorescence Analysis
Yasuhiro Shibata, Junnosuke Suyama, Aki Hamamoto, Noboru Yoshihara, Satoshi Tsuruta, Kazuhiko Nakano and Toshihiro Nakamura 477
Uncertainty Estimation in Determination of Ethyl Aminobenzoate by Diazotization Titration and HPLC with UV Detection
Akira Kotani, Takayo Nakazawa and Fumiyo Kusu 485
Uncertainty Evaluation for Purity Analysis of Organochlorine Compounds by Freezing-Point Depression Method Using Differential Scanning Calorimeter
Toshihide Ihara, Yumiko Iijima and Yoshitaka Shimizu 493
Determination of 1,2-Glycol in Epoxy Resins by Potentiometric Titration and Its Reliability
Hironori Saito, Jill C. Doiron and Monica D. Laurel 499
Technology Reports
Results of 7th Proficiency Testing for Determination of Dioxins Based on ISO/Guide 43-1
Yo-ichi Ishibashi, Shozo Asada, Hiroyuki Igaki, Satoshi Tsuruta, Akihiro Ono, Kazutoshi Kakita and Mamoru Sakata 505