Determination of Trace Amounts of Copper and Lead by Tungsten Metal Furnace Atomic Absorption Spectrometry after Preconcentration with Activated Carbon Impregnated with 1,2-Cyclohexanediondioxime.

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  • UZAWA Atsushi
    Department of Chemistry, Chiba Institute of Technology
  • NARUKAWA Tomohiro
    Department of Chemistry, Chiba Institute of Technology
  • OKUTANI Tadao
    Department of Industrial Chemistry, College of Science and Technology, Nihon University

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  • Determination of Trace Amounts of Coppe

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Abstract

A simple and rapid determination method for trace amounts of copper and lead in water and rock samples by tungsten metal furnace atomic absorption spectrometry was investigated. Copper and lead were quantitatively collected on activated carbon impregnated with 1,2-cyclohexanediondioxime (AC-Dox) at pH 5.0 for copper and pH 8.0 for lead. The copper and lead collected on an AC-Dox were eluted with 1 mol dm-3 hydrochloric acid, and the absorbances of the eluents were measured at 324.8 nm for copper and 283.3 nm for lead, respectively. The detection limit (S/N=3) for copper was 0.013 µg/5.0 cm3 and that for lead was 0.075 µg/5.0 cm3. The relative standard deviations (n=5) were 2.0 - 4.0% for each metal.

Journal

  • Analytical Sciences

    Analytical Sciences 14 (2), 395-398, 1998

    The Japan Society for Analytical Chemistry

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