New Developments in Capillary Electrophoresis. Development and Improvement of Capillary Electrophoresis. On-line micellar electrokinetic chromatography/MS with electrospray ionization and atomospheric pressure chemical ionization interfaces.

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Other Title
  • キャピラリー電気泳動法の新展開　キャピラリー電気泳動法・手法の開発・改良　エレクトロスプレーイオン化法及び大気圧化学イオン化法によるミセル動電クロマトグラフィー／質量分析法の検討
  • エレクトロ スプレー イオンカホウ オヨビ タイキアツ カガク イオンカホウ
  • エレクトロスプレーイオン化法及び大気圧化学イオン化法によるミセル動電クロマトグラフィー/質量分析法の検討(「特集」キャピラリー電気泳動法の新展開)

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Abstract

Two methods were studied for on-line coupling between micellar electrokinetic chromatography (MEKC) and mass spectrometry (MS). A high-molecular-mass surfactant, diisobutylene-maleic acid copolymer sodium salt (DMA), was used as a new pseudo-stationary phase with an electrospray ionization interface. A DMA micelle functioned successfully as a pseudo-stationary phase, and showed significantly different selectivity for naphthalene derivatives in compared with butyl acrylate/butylmethacrylate/methacrylic acid copolymer sodium salt. Five standard compounds (phenyltrimethylammonium chloride, l-naphthylamine, quinine sulfate, tetraphenylphosphonium chloride and octaoxyethylene dodecanol) were separated by MEKC and detected by MS with DMA. An atmospheric pressure chemical ionization interface (APCI) was used for a conventional MEKC system using sodium dodecyl sulphate and sodium cholate.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 46 (6), 421-427, 1997

    The Japan Society for Analytical Chemistry

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