逆相クロマトグラフィー用ニトロフェニル基結合型シリカゲル充てん剤の保持特性の検討とダイオキシン異性体分離への適用<特集>分離(その2)

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  • Special Articles: Separation. Part 2. Chromatography and Capillary Electrophoresis. Evaluation of nitrophenyl-bonded silica for reversed-phase liquid chromatography and its application to the separation of polychlorinated dibenzo-p-dioxin isomers.
  • 特集: 分離 (その2) クロマトグラフ・キャピラリー電気泳動分離 逆相クロマトグラフィー用ニトロフェニル基結合型シリカゲル充てん剤の保持特性の検討とダイオキシン異性体分離への適用
  • ギャクソウ クロマトグラフィーヨウ ニトロフェニルキ ケツゴウガタ シリカ ゲ

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Several nitrophenylsilylated silicas were prepared, and the chromatographic properties were compared with those of C18 and pyrenylethyl bonded silica (PYE). 3-(p-Nitrophenoxy)propylsilylated silica (NPO) and 2-(nitrophenyl)ethyl bonded silica (NPE) showed preferential retention for dinitrobenzenes and chlorobenzenes with substituents positioned as close as possible based on the dipole-dipole interaction. The NPO showed greater selectivity than NPE. In contrast, PYE preferentially retained isomers with more symmetrical substitution. The use of NPO, in combination with the PYE phase, allowed not only the separation of all of the polychlorodibenzo-p-dioxin isomer mixtures coproduced during the synthesis, but also a structural assignment for each separated peak.

収録刊行物

  • 分析化学

    分析化学 42 (12), 837-843, 1993

    公益社団法人 日本分析化学会

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