BUNSEKI KAGAKU

Vol. 52 No. 11

November, 2003

Table of Contents

Research Papers

Establishment of an Inorganic Elements Measuring Method for Determining the Geographic Origin of Welsh Onion and Preliminary Examination

Kaoru Ariyama, Hiroshi Horita and Akemi Yasui 969

Molecular-Weight Evaluation of Silicone Oil on a Solid Surface by Silver Deposition/ime-of-Flight Secondary Ion Mass Spectrometry

Masae Inoue, Atushi Murase and Motoyasu Sugiura 979

Influence of the Moisture Content on Supercritical Fluid Extraction and Soxhlet Extraction of Dioxins from Soil

Takashi Miyawaki, Ayato Kawashima and Katsuhisa Honda 989

Identification and Determination of Sulfur Compounds Dissolved in Water from Volcanic Ashes of Mt. Oyama in Miyake Island and Their Effect to the Environment

Sachiko Wakasugi, Miho Tanaka and Masaru Maeda 997

Separation of Dansyl Amino Acid Enantiomers by Ligand-Exchange Capillary Electrochromatography Using an L-Lysinamide-Modified Monolithi Silica Column

Takahide Nishiyama, Zilin Chen, Tatsuro Nakagama, Katsumi Uchiyama and Toshiyuki Hobo 1005

Technical Papers

Determination of Polychlorinated Biphenyls in Sediment by Isotope-Dilution Gas Chromatography/Mass Spectrometry with Pressurized Fluid Extraction

Takashi Yarita, Atsuko Nakama, Masahiko Numata, Yoshie Aoyagi, Misako Yamazaki and Akiko Takatsu 1011

Determination of Thiocyanate Ion by Ion-Pair Chromatography with C₃₀ as a Stationary Phase

Noboru Hiraki, Akinori Isozaki and Hisomu Nagashima 1019

Determination of Trace Elements in Copper by Ion-Exchange Separation Using EDTA as a Matrix Masking Reagent

Hitoshi Yamaguchi, Shinji Itoh, Shin'ichi Hasegawa, Kunikazu Ide and Takeshi Kobayashi 1025

International Comparison on the Determination of an Ethanol Aqueous Solution by ¹H Nuclear Magnetic Resonance

Takeshi Saito, Toshihide Ihara, Hiroshi Sato, Harald Jancke and Shinichi Kinugasa 1029

Technical Letters

Preparation and Certification of New Reference Materials Field Soils (JSAC 0441 and JSAC 0442) for the Determination of Residual Pesticides in Soil

Hiroshi Nakamura, Masako Ueji, Mariko Murayama, Yoshitsugu Odanaka, Toshihiro Nagayama, Yasusuke Matsumoto, Minoru Ishii, Takahiro Fujikawa, Masahiro Hanai, Akira Tsuruta, Kazutoshi Kakita, Akihiro Ono and Mamoru Sakata 1037

Dissolution Procedures for Several Ruthenium Alloys in Inductively Coupled Plasma-Optical Emission Spectrometry

Yûetsu Danzaki and Kazuaki Wagatsuma 1047

International Comparison on the Determination of Ethanol in Aqueous Matrix

Toshihide Ihara, Kazuhiro Shikakume, Satoko Otsuka, Hiroko Ueno, Kazuko Yoshimura, Yoko Ohte, Yasusuke Matsumoto and Akira Nomura 1053

Digest of Doctoral Dissertation

An Application of Synchrotron Radiation to the Analysis of Forensic Samples, Mainly Drugs of Abuse

Seiji Muratsu 1061

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