BUNSEKI KAGAKU

Vol. 60 No. 2

February, 2011

Table of Contents

Research Papers
The Effect of Organic Compounds on Si Concentration in Soil Solution — the Comparision of Poly(N-vinylpyrrolidone) and N-methyl-2-pyrrolidone —
Mayumi ETOU, Ikuko NISHIDA, Shuqin BAI, Yoshihiro OKAUE and Takushi YOKOYAMA 97
Reviews
Optimal Purification Technology of Ultrapure Water for Instrumental Analysis
Naoe ISHII 103
Accounts
Thermal Behavior, Structure, and Dynamics of Low Temperature Water Confined in Mesoporous Materials MCM-41
Toshio YAMAGUCHI, Koji YOSHIDA, Kanae ITO, Shigeharu KITTAKA and Shuichi TAKAHARA 115
Technical Papers
Estimation of the Sources of Groundwater Used for Food Materials in Sayama City, Saitama Prefecture, by Geochemical Methods and Numerical Simulation
Shingo TOMIYAMA, Akira UEDA, Akiko KITAI and Shuichi AOI 131
Research Papers
Analysis of Short Chain Fatty Acids in Mouth Air by GC/MS Utilizing Solid-Phase Micro Extraction Needle
Yuko ICHIBA, Hiroyuki HANIHARA, Masami FUJIWARA, Tomoko HIRAYAMA, Keiko KAZUNO, Seiji MORISHIMA, Kayoko SHINADA and Yoko KAWAGUCHI 143
Simultaneous Determination of Iodide and Iodothyronines by Reversed-Phase High-Performance Liquid Chromatography with an Alkylammonium Phosphate-Containing Mobile Phase
Masahiro MIYASHITA, Yoshiyuki SEYAMA and Toshio OBATA 149
Quantification of Non-Volatile Amines in Beer Using Hydrophilic Interaction Liquid Chromatograph-Tandem Mass Spectrometer
Yasuhiro KAKIGI, Azusa YAMASHITA, Yasuhisa MIYAMOTO, Takeshi ICHO and Naoki MOCHIZUKI 157
Technical Papers
Measurement Data Selection Using Multiple Regression Analysis for Precise Quantitative Analysis
Toshiyuki MITSUI and Shuji OKUYAMA 163
Notes
Analysis of Structurally Analogous Polybrominated Flame Retardants by Derivative Spectrum Chromatogram Method
Kazuhisa UCHIYAMA, Mari KONDO, Rika YOKOCHI, Hiroshi ITO, Ichiro TAJIMA, Miyuki TONEGAWA, Yoshiharu NAMEGAYA and Atsushi YAMAMOTO 171
Analytical Reports
Suppression of Contamination for Trace Analysis of Silicon by Molybdosilicate Blue Spectrophotometry after Silicon Tetrafluoride Separation
Tetsuya ASHINO, Kouichi TOZAWA and Kazuaki WAGATSUMA 175
Lead and Cadmium Concentrations in Winter Rain, Fresh Snow, Rime and Glaze Collected on the Top of Mt. Kajigamori, Kochi Prefecture in Shikoku Island, Japan
Shoji IMAI, Isao KUROTANI, Satoshi ITO, Takashi YAMAMOTO and Hiroshi YAMAMOTO 179