空気-アセチレン-酸素サンドイッチフレームによる銅の原子吸光分析

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書誌事項

タイトル別名
  • 空気‐アセチレン‐酸素サンドイッチフレームによる銅の原子吸光分析
  • Determination of copper by atomic absorption spectrophotometry using an oxygen-sandwiched air-acetylene flame
  • クウキ アセチレン サンソ サンドイッチ フレーム ニヨル ドウ ノ ゲンシ

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抄録

In flame atomic absorption spectrophotometry benzene, toluene, xylene, hexane, cyclohexane, chloroform and carbon tetrachloride are hardly usable as solvents for extraction because of the appearance of white flame, the blow-out of flame or unstable burning.<BR>In the present study, a new type of burner was designed of which the flame is sandwiched with oxygen. The determination of copper was examined with it. Sodium diethyldithiocarbamate was added to a sample solution of pH 5.0 and copper was extracted with above solvents. Effect of acetylene-oxygen flow rate and optimum condition of burner were examined at air flow rate of 13 l/min. In each case, no appearance of white flame, blow-out of flame and flash back were observed, and the determination was satisfactory.<BR>When the organic solvents were used, the sensitivity (μg/ml/1%) were 0.0340.008 and the detection limits (μg/ml) were 0.0040.001. Using hexane, the sensitivity was 0.008 and it was about twenty times higher than in the case of aqueous solution.<BR>Copper in aluminum alloy was determined with good results by this procedure.

収録刊行物

  • 分析化学

    分析化学 26 (3), 162-168, 1977

    公益社団法人 日本分析化学会

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