Ion-chromatographic behavior of silica gels modified by poly- and bis(crown ether)s of benzo-18-crown-6.
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概要
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Chromatographic behavior of crown ether modified silicas, in which poly- and bis(benzo-18-crown-6)s were attached covalently to silica gel, was investigated on separation of alkali and alkaline earth metal salts, using water or water/methanol as the mobile phase. Poly- and bis(benzo-18-crown-6)-modified silicas have a large affinity for Cs<SUP>+</SUP>, the retention time of alkali metal cations being in the order Li<SUP>+</SUP><Na<SUP>+</SUP><Rb<SUP>+</SUP><K<SUP>+</SUP><Cs<SUP>+</SUP>. Various anions having a common cation are separable as well as the metal cations on the modified silicas. Also, alkaline earth metal cations were separated on the stationary phases. The temperature effect of retention of alkali metal chlorides was also examined on bis(benzo-18-crown-6)-modified silica.
- 公益社団法人 日本化学会の論文
著者
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Shono Toshiyuki
Department Of Applied Chemistry Faculty Of Engineering Osaka Institute Of Technology
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Kimura Keiichi
Department Of Applied Chemistry Faculty Of Systems Engineering Wakayama University
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Nakajima Masaki
Department Of Mechanical Engineering Toyota College Of Technology
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