Novel pseudostationary phase for micellar electrokinetic capillary chromatography

Christopher P. Palmer, Harold M. McNair

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

A novel, highly stable pseudostationary phase for use in micellar electrokinetic capillary chromatography has been synthesized and evaluated. Sodium‐10‐undecylenate has been oligomerized to form a micelle‐like structure following the procedure of Durairaj et al. [1]. The effective critial micelle concentration of this new pseudostationary phase is zero, permitting electrokinetic chromatography to be performed at lower ionic strength than is possible with the corresponding free surfactant. The structural stability of this pseudostationary phase permits its use with relatively high percentages of organic modifiers in the buffer medium, allowing the separation and detection of hydrophobic analytes such as alkyl phthalates which are difficult to analyze by conventional micellar electrokinetic chromatography.

Original languageEnglish
Pages (from-to)509-514
Number of pages6
JournalJournal of Microcolumn Separations
Volume4
Issue number6
DOIs
StatePublished - 1992

Keywords

  • hydrophobic analytes
  • micellar electrokinetic capillary chromatography
  • organic modifiers
  • pseudostationary phase
  • sodium‐10‐undecylenate

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