Preconcentration of Gallium by Coprecipitation with Synthetic Zeolites Prior to Determination by Electrothermal Atomic Absorption Spectrometry

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概要

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• Synthetic zeolites were dissolved in nitric acid, and the resulting solution used as a coprecipitant for the preconcentration of trace amounts of gallium in water samples prior to determination by electrothermal atomic absorption spectrometry (ETAAS). The gallium preconcentration conditions and the ETAAS measurement conditions were optimized. Gallium was quantitatively concentrated with the zeolites coprecipitate from pH 6.0 to 8.0. The coprecipitate was easily dissolved in nitric acid, and an aliquot of the resulting solution was introduced directly into a tungsten metal furnace. The atomic absorbance of gallium in the resulting solution was measured by ETAAS. An ashing temperature of 400°C and an atomizing temperature of 2600°C were selected. The calibration curve was linear up to 3.0 ?g of gallium and passed through the origin. The detection limit (S/N ? 3) for gallium was 0.08 ?g/100 cm3. The relative standard deviation at 1.0 ?g/100 cm3 was 3.0% (n = 5). The proposed method has been successfully applied to trace gallium analysis in environmental water samples.

• The Japan Society for Analytical Chemistryの論文
• 2004-04-10

著者

• TANAKA Satoshi

  Department of Physical Science, Osaka Prefecture University

• Tanaka Satoshi

  Department Of Nutritional Sciences Faculty Of Nutritional Science Nakamura Gakuen University

• Tanaka S

  Univ. Tokyo Tokyo

• Shibukawa M

  Nihon Univ. Narashino Jpn

• MINAMISAWA Hiroaki

  Department of Basic Science and High Technology Research Center, College of Industrial Technology, N

• MINAMISAWA Mayumi

  Department of Bio Technology, Tokyo College of Medico-Phamaco Technology

• ARAI Nobumasa

  Department of Basic Science and High Technology Research Center, College of Industrial Technology, N

• SHIBUKAWA Masami

  Department of Applied Moleculer Chemistry, College of Industrial Technology, Nihon University

• IIZIMA Shinpei

  Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University

• Arai Nobumasa

  Department Of Basic Science And High Technology Research Center College Of Industrial Technology Nih

• Iizima Shinpei

  Department Of Applied Molecular Chemistry College Of Industrial Technology Nihon University

• Shibukawa Masami

  Department Of Applied Molecular Chemistry College Of Industrial Technology Nihon University

• Minamisawa M

  Tokyo College Of Medico-pharmaco Technology

• Minamisawa Mayumi

  Department Of Bio Technology Tokyo College Of Medico-phamaco Technology

• Minamisawa H

  Department Of Basic Science And High Technology Research Center College Of Industrial Technology Nih

• Minamisawa Hiroaki

  Department Of Basic Science & High Technology Center College Of Industrial Technology Nihon Univ

• Arai Nobumasa

  Department Of Basic Science And High Technology Research Center College Of Industrial Technology Nih

• Tanaka Satoshi

  Department Of Anesthesia Nagano Municipal Hospital

• Tanaka Satoshi

  Department Of Agricultural Chemistry Faculty Of Agriculture Tottori University

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