Vol. 4 9 No. 4

April, 2 0 0 0

Review

Soil Analyses by ICP-MS

Shin-ichi Yamasaki 217

Research Papers

Study of Appropriate Sampling Intervals of Digital Data in Chromatography

Chikako Yomota, Yoko Tagashira, Mari Katsumine, Kazuo Iwaki, Rieko Matsuda and Yuzuru Hayashi 225

Study of Some Digital Processing Methods for Appropriate Sampling Intervals of Digital Data in Chromatography

Rieko Matsuda, Yuzuru Hayashi, Chikako Yomota, Yoko Tagashira, Mari Katsumine and Kazuo Iwaki 233

Technical Papers

Determination of Trace Antimony(III) in Water by Graphite-Furnace AAS after Preconcentration with 4-(2-Pyridylazo)resorcinol and Capriquat Loaded Silica Gel

Hiroki Tange, Masayoshi Yasuda and Takashi Goto 239

Determination of Uranium in Water Samples by ICP-AES with Chelating Resin Disk Preconcentration

Tsutomu Miura, Takao Morimoto, Kazuhiko Hayano and Takeshi Kishimoto 245

Characterization by TOF-SIMS of the Interface between a Lubricant Film and a Carbon Film on a Thin-Film Magnetic Recording Disk

Tetsuo Amemiya, Nobuyuki Yoshino, Yoshio Umeda and Yoshimasa Nihei 251

Notes

Screening Method for Serum γ-Globulin Concentration Using a Sulfosalicylic Acid Solution Containing Triton X-100 as a Precipitant

Yuji Suzuki 257

Spectrophotometric Determination of Nitrate and Nitrite in Natural Water Samples Based on an Oxime Formation Reaction of Phenol

Yasuhiro Gou 261

Technical Papers

Identification of Fatty Acid Composing Metal Salt of It in Resins by Alcohol Added Thermal Extraction with High-Frequency Heating

Kenji Kurihara and Fumiyo Tanoue 265

Identification of Polyester Resin Components by Alcohol Added Thermal Extraction with High-Frequency Heating

Kenji Kurihara and Fumiyo Tanoue 269

Digest of Doctroral Dissertation

Studies on Improving the Sensitivity and Performance in Inductively Coupled Plasma Atomic Emission Spectrometry

Yoshisuke Nakamura 273

Chemical Modification of Silica-Based Packing Materials for High-Performance Liquid Chromatography

Yoshihisa Sudo 275

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