B U N S E K I K A G A K U

Vol. 47 No. 3

March, 1998


Original Papers

Spectral Interferences by Potassium on the Determination of Selenium by

Graphite Furnace AAS

Hirotsugu Minami, Yukari Ishizu, Atsuko Shinohara, Momoko Chiba and Ikuo Atsuya 149

Rapid Determination of Trace Phosphorus, Sulfur, Chlorine, Bromine and

Iodine by Energy Dispersive X-ray Fluorescence Analysis with

Monochromatic Excitations

Tatsushi Wakisaka, Naoki Morita, Tadashi Hirabayashi and Taketoshi Nakahara 157

Studies on Baseline Stabilization in a Measurement by Size-Exclusion Chromatography

Norio Manabe, Kingo Furukawa, Tsuyoshi Toyoda and Sadao Mori 163

Spectrophotometric Determination of the Average Valence of Cerium in Nd-Ce-Cu

Oxides with o-Tolidine

Kunihiro Watanabe, Naomori Yokoiwa, Masayuki Itagaki and Nobuyuki Koura 171

Fluorometric Determination of Trace Amounts of Copper(II) Using On-Line

Adsorption Preconcentration in Teflon Capillary Tubes

Kunihiro Watanabe, Kunihiro Ohba, Arkin Iburaim, Masayuki Itagaki and Nobuyuki Koura 179


Technical Papers

Determination of Trace Amounts of Phosphorus in High-Purity Silicon by

ICP-MS after Acid-vapor Decomposition under Elevated Pressure

and Isolation as a Molybdophosphate−Dodecyltrimethylammonium

Bromide Ion Pair

Kyoko Fujimoto, Masao Ito, Makoto Shimura and Keiichi Yoshioka 187


Notes

Determination of Selenium in Municipal-Waste Incineration Fly-Ash by Microwave

Digestion/Graphite-Furnace AAS with a Zeeman-Effect Background Correction

Makoto Torigai, Tong Ouyang, Kiyoshi Iwashima, Masahiro Osako and Masaru Tanaka 195


Digest of Doctoral Dissertation

Development of a Novel Chemiluminescence Detection System in Ion

Chromatography

Hiroyuki Sakai 199


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