鍋から溶出するアルミニウムイオンの検出―ナスの色素の利用―

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タイトル別名
  • Detection of aluminium ion eluted from the pan-Using pigment of eggplant-
  • ナベ カラ ヨウシュツスル アルミニウム イオン ノ ケンシュツ ナス ノ シキソ ノ リヨウ
  • —Using pigment of eggplant—
  • —ナスの色素の利用—

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  The determinations of Al using various chemical reagents have already been reported. The detection of Al eluted from the Al-Pan was investigated using the pigment of eggplant rind that is not a chemical reagent. This method is environmentally safe and the eggplant is easily utilized. This pigment was extracted with water from the rind obtained by heating the eggplant in an electric range. This pigment color is reddish-violet and changed to bluish-violet by adding Al to the pigment solution. The absorption maxima of the absorption curve using this pigment solution is 530nm. The absorption maxima of the mixed solution of Al and the pigment is 580nm. The absorption of the pigment has no effect on the detection of Al at 580nm. The calibration curve at 580nm was a straight line from 0.240×10-4 to 1.68×10-4M of Al Concentration. Using this method, Al eluted from the Pans was readily detected.

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