BUNSEKI KAGAKU

Vol. 60 No. 7

July, 2011

Table of Contents

Accounts
Two Dimensional Stress Characterization of Si by a Scanning Near–Field Optical Raman Microscope Using Ultraviolet Resonant Raman Scattering
Masanobu YOSHIKAWA 533
Research Papers
Reproducibility of Measurement Results by Automated Identification and Quantification System with Database for GC/MS
Terumi MIYAZAKI, Kiwao KADOKAMI, Yuichi SONODA, Daisuke JINYA, Takashi YAMAGAMI, Kenichi TOUBOU and Hiroaki OGAWA 543
Spectrophotometric Determination of Nickel in Steels Using On-line Preconcentration Method
Kunihiro WATANABE, Hiroyasu MIDORIKAWA, Isao SHITANDA and Masayuki ITAGAKI 557
Correlation of Stable Isotope Ratios of Light Elements between Ambient Water and Polished Rice, Tsugaru Plain, Aomori Prefecture
Shingo TOMIYAMA, Yaeko SUZUKI, Rumiko NAKASHITA and Yoshio AIKAWA 563
Evaluation between Statistical Methods Related to the z Score for Use in Proficiency Testing
Koji KANEFUJI, Takahisa TSUGOSHI and Kosei IWASE 571
Speciation Analysis for Trace Copper in Natural and Tap Water by Catalytic Method
Susumu KAWAKUBO, Hiromi OGUSU and Masaaki IWATSUKI 579
Chemiluminescent Determination of Chromium(VI) with 4-Methoxycoumarin and the Effect of Alkaline Solutions on the Chemiluminescence
Kunihiro WATANABE, Yu ISHII, Isao SHITANDA and Masayuki ITAGAKI 585
Technical Papers
Determination of Four Kinds of Tocopherols in Soybean Oil by High Performance Liquid Chromatography on a C30 Reversed-Phase Column
Hideaki KITAMI, Yoshimi ISHIHARA and Jiro TAKANO 593
Notes
Spectrophotometric Determination of Pyrroloquinolinequinone with N,N-Diethyl-p-phenylenediamine
Tomoki SUIZU, Yusuke FUJIMOTO, Mitsuru HOSHINO, Tsuyoshi FUJIMOTO, Ryosuke NAKAHARA, Takako YAMAGUCHI and Yoshikazu FUJITA 599