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On-line Preconcentration and Determination of Lead in Iron and Steel by Flow Injection-Flame Atomic Absorption Spectrometry

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Abstract

A flow injection method has been developed for the determination of lead in steel samples by coupling on-line preconcentration on a lead selective resin, PbSpecTM, with flame atomic absorption spectrometry. The sample prepared as a nitric acid solution is passed through a column packed with PbSpecTM. The lead retained on the column is then eluted with ammonium oxalate solution and introduced directly into the nebulizer of a flame atomic absorption spectrophotometer. The proposed method was successfully applied to the determination of lead in pure iron certified reference material [0.19 ± 0.01 ppm (n=6); certified value: 0.2 ppm] and lead-free cutting steel certified reference material [0.0952 ± 0.0008 % (n=3); certified value: 0.097 %]. The detection limit (3o) was 0.05 μg of lead.

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Authors and Affiliations

  1. Central Research Institute, Nissan Chemical, Industries, Ltd., Tsuboicho, Funabashi, 274-8507, Japan

    Tatsuya Seki

  2. Department of Materials Technology, Faculty of Engineering, Chiba University, Yayoicho, Inage, Chiba, 263-8522, Japan

    Hiroyuki Takigawa, Yoshihiro Hirano & Koichi Oguma

  3. Analytical Center, Kohkankeisoku Corp., Minamiwataridacho, Kawasaki, Kawasaki, 210-0855, Japan

    Yoichi Ishibashi

Authors
  1. Tatsuya Seki
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  2. Hiroyuki Takigawa
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  3. Yoshihiro Hirano
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  4. Yoichi Ishibashi
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  5. Koichi Oguma
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Corresponding author

Correspondence to Koichi Oguma.

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Seki, T., Takigawa, H., Hirano, Y. et al. On-line Preconcentration and Determination of Lead in Iron and Steel by Flow Injection-Flame Atomic Absorption Spectrometry. ANAL. SCI. 16, 513–516 (2000). https://doi.org/10.2116/analsci.16.513

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  • DOI: https://doi.org/10.2116/analsci.16.513

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