Electrothermal Atomic Absorption Spectrometric Determination of Copper(II) Using a Tungsten Metal Furnace after Preconcentration onto Chitosan.

DOI PDF Web Site Web Site Web Site 被引用文献4件 参考文献45件
  • MINAMISAWA Hiroaki
    Department of Liberal Arts and Basic Science, College of Industrial Technology, Nihon University
  • ARAI Nobumasa
    Department of Liberal Arts and Basic Science, College of Industrial Technology, Nihon University
  • OKUTANI Tadao
    Department of Industrial Chemistry, College of Science and Technology, Nihon University

この論文をさがす

抄録

The properties of chitosan to adsorb metal ions and to dissolve in some organic acids were applied to the preconcentration and determination of copper(II) in water samples by tungsten metal furnace atomic absorption spectrometry. Copper(II) was quantitatively adsorbed onto chitosan over the pH range of 5.0 - 9.0. The chitosan adsorbed copper(II) was separated from the sample solution by a membrane filter, then dissolved in 2.0 cm3 of 0.1 mol dm-3 acetic acid. An aliquot of this resulting solution was introduced directly into a tungsten metal furnace, and the absorbance of copper was measured by atomic absorption spectrometry. An ashing temperature of 900°C and an atomizing temperature of 2500°C were selected, respectively. The detection limit for copper(II) was 0.002 µg dm-3 (S/N≥3). A quantitative recovery was obtained over the 50 - 500 dm-3 range of the sample solution. The relative standard deviations (n=5) were 3.8% for 0.10 µg Cu(II)/100 cm3, 4.7% for 0.05 µg Cu(II)/100 cm3. The proposed method was applied to the determination of trace amounts of copper(II) in water samples.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 15 (3), 269-275, 1999

    社団法人 日本分析化学会

被引用文献 (4)*注記

もっと見る

参考文献 (45)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ