Synthesis, stability, and chromatographic properties of silica gels modified by polyelectrolyte complexes

  • A. V. Pirogov
  • I. A. D’yachkov
  • O. A. Shpigun
Separation Processes at Interfaces: Chromatography


Methods are suggested for obtaining new sorbents for ionic chromatography (polyelectrolyte anion-exchangers) based on the modification of silica gels for HPLC by cationic polymer solutions. Advantages and faults of each method are pointed out. Factors that affect chromatographic characteristics and operating stability of polyelectrolyte sorbents are studied. Operating conditions are chosen for chromatographic columns based on polyelectrolyte sorbents that allow one to preserve the initial characteristics for more than 1.5 months.


Inorganic Anion Polyelectrolyte Complex Silasorb Tetrafluoroborate Anion Selectivity Scale 
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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • A. V. Pirogov
    • 1
  • I. A. D’yachkov
    • 1
  • O. A. Shpigun
    • 1
  1. 1.Department of ChemsitryMoscow State UniversityMoscowRussia

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