間接紫外吸収検出イオンクロマトグラフィーに用いるフタル酸溶離液の検討

書誌事項

タイトル別名
  • Study of the use of phthalate solution as an eluent in indirect photometric ion chromatography.
  • カンセツ シガイ キュウシュウ ケンシュツ イオン クロマトグラフィー ニ モ

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説明

A study to find a better mobile phase for use in the rapid determination of inorganic anions such as fluoride, chloride, nitrite, phosphate, nitrate and sulfate ions by indirect photometric ion chromatography is presented. The eluent optimized was a weak-alkaline (pH 7.3) buffer solution containing 0.7 mM potassium hydrogenphthalate-0.1 mM sodium tetraborate-0.5 mM boric acid-0.1 mM HEPPS-0.05 mM sodium hydrogencarbonate-5 % butanol. The problem of the system peak otherwise encountered was eliminated by judicious choice of the alkalinity of the buffer solution. The eluent did not show any pH drift typically caused by dissolution of carbon dioxide, and was able to separate the phosphate ion completely from the chloride. Whole anions above described were determined within 15 min.

収録刊行物

  • 分析化学

    分析化学 43 (3), 237-240, 1994

    公益社団法人 日本分析化学会

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