誘導結合プラズマ質量分析法及びメタル炉原子吸光法による黒鉛中の不純物元素の定量

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タイトル別名
  • Determination of impurities in graphite by ICP-MS and AAS using a metal furnace.
  • ユウドウ ケツゴウ プラズマ シツリョウ ブンセキホウ オヨビ メタルロ ゲン

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抄録

Elemental impurities in graphite: boron, sodium, magnesium, aluminium, titanium. vanadium, chromium, manganese, iron, cobalt, and nickel, were determined by ICP-MS, and calcium, potassium, copper and zinc by AAS using a tungsten furnace. Ashing in oxygen-plasma below 400°C was employed for the determination of the following 6 elements: sodium, potassium, titanium, chromium, copper and zinc. Ashing at 880°C in an electric furnace having a quartz-tube was employed for the determination of the other 9 elements. The dissolution methods used for the ashes containing each element were studied from the viewpoint of kinds of acid used duration and temperature. With these results, a suitable pretreatment method was established for the determination of a trace amount of impurities in graphite.

収録刊行物

  • 分析化学

    分析化学 42 (8), 485-489, 1993

    公益社団法人 日本分析化学会

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