Electrokinetic transport of CTAB induces multiphasic behavior during capillary adsorption and desorption
Austin S. Abrams,
Alexander Eden,
Bennett C. Coy
et al.
Abstract:Cationic surfactant coatings (e.g., CTAB) are commonly used in CE to control EOF and thereby improve separation efficiencies. However, our understanding of surfactant adsorption and desorption dynamics under EOF conditions is limited. Here, we apply automated zeta potential analysis to study the adsorption and desorption kinetics of CTAB in a capillary under different transport conditions: diameter, length, voltage alternation pattern and frequency, and applied pressure. In contrast to other studies, we observ… Show more
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