Vol. 4 9 No. 6

June, 2 0 0 0

Research Papers

Simultaneous Determination of Phenylalanine, Leucine and Galactose in a Dried-Blood Disc by Semi-Micro FIA Using an Enzyme-Immobilized Column and Its Application to Neonatal Mass-Screening for Inborn Errors of Metabolism

Masumi Mitome, Katsutoshi Ito, Hidetoshi Arakawa and Masako Maeda 355

Visual Determination of Protein in Urine Using Bromochlorophenol Blue and a Membrane Filter

Keitaro Yoshimoto, Emiko Kaneko and Takao Yotsuyanagi 363

Simultaneous FIA of Hypoxanthine and Polyamines Using a Dual Enzyme Electrode

Toshio Yao and Akira Uno 369

Stereospecific Analysis of γ-Linolenic Acid-Rich Triacylglycerols by HPLC

Yutaka Itabashi, Mako Kawano, Tomoya Aoyama and Toshiaki Nakajima 375

Variation of Selenium Contents of Cow's Milk and Infant Formulas During Almost Ten Years in Japan

Yuzo Tamari 381

Multielement Determination of Major-to-Ultratrace Elements in Vegetable Samples by ICP-MS and ICP-AES after Acid Digestion

Akiko Hokura, Sachiko Oguri, Hirotaka Matsuura and Hiroki Haraguchi 387

Multielement Determination and Speciation of Major-to-Ultratrace Elements in Green Tea Leaves by ICP-AES and ICP-MS

Hirotaka Matsuura, Akiko Hokura and Hiroki Haraguchi 397

Determination of the Geographic Origin of Brown-Rice with Trace-Element Composition

Akemi Yasui and Kumiko Shindoh 405

Determination of Aldehydes in Drinking Water and River Water by Headspace GC/Negative-Ion Chemical-Ionization MS

Minako Hada, Masahiko Takino and Shigeki Daishima 411

Catalytic Determination of Trace Silver Ion with Sterilizing Power

Etsu Yamada, Hideyuki Okita, Takeshi Yamada, Munekatsu Hirano and Sadao Narita 419

Development of a Gas Absorption Microchip Using Porous Glass and Its Evaluation for Analytical Applications

Takashi Korenaga, Tamao Odake, Yasunari Ono and Long Rong 423

Technical Papers

Determination of Aluminium in Biological Samples and Drinking Water by Kinetic-Differentiation Mode HPLC with Fluorescent Detection

Makoto Sato, Jun Matsuda, Harunobu Murayama, Ryong-Woon Shin, Emiko Kaneko and Takao Yotsuyanagi 429

Analysis of Oligosaccharide and Sugar Alcohol by Pyrolysis GC/MS

Takeshi Tsunesada, Atsuhiko Takehara, Kazuta Mitsuishi and Toshihide Ihara 437

Determination of Bisphenol A Migrated from Polyvinyl Chloride Hoses by GC/MS

Takashi Yamamoto and Akio Yasuhara 443

Rapid Measuring Method of Volatile Organic Compounds in Building Materials

Yuko Nishimoto, Takeshi Takenouchi, Tomoko Daigo, Tetsuzann Nakada and Hidenobu Kuroyama 449

Application of FIA to the Measurement of NO_x and SO_x in Air and Environmental Water Samples at Nagoya and Its Environs

Norio Teshima, Tadao Sakai, Seiji Yasuda and Keiro Higuchi 455

Notes

Determination of Thymine Glycol in Rat Urine by Isotope Dilution GC/MS for Evaluating the Antioxidative Efficacy of Flavonoids

Tomoyuki Chimuro, Tamizi Sugiyama and Ryuhei Funabiki 463

Sampling and Highly Sensitive Measurement of Formaldehyde Based on a Droplet Method

Takashi Korenaga, Momoko Kumemura, Murad I. H. Helaleh, Chiharu Hara and Takao Yamauchi 467

Technical Letters

Separation of Structural Isomers of Chlorinated Phenols by Capillary Electrophoresis with a Volatile Running Solution

Sahori Takeda, Shigeo Iida, Kenji Chayama, Haruo Tsuji, Keiichi Fukukshi, Masataka Yamane, Zyun Siroma and Shin-ichi Wakida 471

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