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On-line concentration of neutral analytes for micellar electrokinetic chromatography I. Normal stacking mode
journal contribution
posted on 2023-05-26, 15:51 authored by Joselito Quirino, Terabe, SUsing two anionic high-molecular-mass surfactants, butyl acrylate-butyl methacrylate-methacrylic acid copolymers, sodium salt (BBMA), and sodium 10-undecylenate (SUA) oligomer, and an anionic low-molecular-mass surfactant, sodium dodecyl sulfate (SDS), almost an order of magnitude improvement in concentration detection limit for a neutral analyte was made feasible by normal stacking mode (NSM). Stacking efficiency and recovery were independent of analyte retention factors and were slightly dependent on the nature of the pseudostationary phases. Furthermore, fundamental conditions for on-line sample concentration by NSM were theoretically and experimentally examined.
History
Publication title
Journal of Chromatography AVolume
781Article number
1-2'Number
1-2'Pagination
119-128ISSN
0021-9673Publication status
- Published
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The definitive version is available at http://www.sciencedirect.comRepository Status
- Restricted
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