陰イオン交換樹脂カラム-比色法による臭素酸カリウムの分析

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書誌事項

タイトル別名
  • Determination of Potassium Bromate by Anion Exchange Resin Column Separation Followed by Colorimetry
  • インイオン コウカン ジュシ カラム - ヒショクホウ ニヨル シュウソサン
  • Studies on Potassium Bromate in Foods. I
  • 食品中の臭素酸カリウムに関する研究 (第1報)

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説明

A simple analytical method was developed for quantitative determinaion of potassium bromate in bread and fish paste products by anion exchange resin column separation followed by colorimetry.<br>The principles of the proposed method are as follows. Potassium bromate was extracted with water from samples, absorbed on an Amberlite IRA-47 (acetate form) resin column in 50% acetic acid condition and eluted with 0.05N potassium hydroxide -0.5N potassium acetate solution. The eluate was mixed with o-tolidine and hydrochloric acid as coloring reagents, and the absorbance of the solution was determined at 440nm after 20 minutes. The recoveries were 74-83% from bread and 79-88% from fish paste products. The detection limit was 1μg/g.<br>The method was applied to the analysis of bread and fish paste products. In 100 samples (bread 10, fish paste products 90), no potassium bromate was detected.

収録刊行物

  • 食品衛生学雑誌

    食品衛生学雑誌 24 (4), 376-382_1, 1983

    公益社団法人 日本食品衛生学会

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