溶媒抽出／細管式等速電気泳動法による排水中のマンガンと亜鉛の同時定量

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タイトル別名
  • Simultaneous determination of manganese and zinc in wastewater by solvent extraction/capillary isotachophoresis.
  • ヨウバイ チュウシュツ サイカンシキ トウソク デンキ エイドウホウ ニ ヨル

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Simultaneous determination of manganese and zinc in wastewater by capillary isotachophoresis using solvent extraction as a concentration procedure has been carried out. The sample was decomposed with concentrated nitric acid and 9M sulfuric acid, and metal ions were extracted as diethyldithiocarbamate complexes into butyl acetate, and then the reverse extraction was done with EDTA solution. An aqueous solution of theconcentrate (40times) was injected in isotachophoretic analyzer equipped with potential gradient detector. The leading electrolyte was composed of 5mM HCl and 3mM β-alanine in 45%v/v acetone-water solvent, and the terminating electrolyte was 5mM EDTA·2Na aqueous solution. Only manganese and zinc were quantitatively determined in the range of 0.05 to 2.0mg l-1 for manganese and 0.06 to 2.0mg l-1 for zinc, the injection volume being kept constant at 10μl. The correlation between the proposed method and the conventional one (the spectrophotometric method) was satisfactory.

収録刊行物

  • 分析化学

    分析化学 40 (6), 301-304, 1991

    公益社団法人 日本分析化学会

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