Evaluation and characterization of pseudo-stationary phases in micellar electrokinetic chromatography

Evaluation and characterization of pseudo-stationary phases in Micellar Electrokinetic Chromatography

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Micellar electrokinetic chromatography.

Copolymerized polymeric surfactants: characterization and application in micellar electrokinetic chromatography.

An achiral monomeric surfactant (sodium 10-undecenyl sulfate, SUS) and a chiral surfactant (sodium 10-undecenoyl L-leucinate, SUL) were synthesized and polymerized individually to form poly-SUS and poly-SUL. These surfactants were then copolymerized at various molar ratios to produce a variety of copolymerized surfactants (CoPSs), possessing both achiral (sulfate) and chiral (leucinate) head gr...

Preparation and Evaluation of Bonded Linear Polymethacrylate Stationary Phases for Open Tubular Capillary Electrokinetic Chromatography

A new procedure for the preparation of thick polymethacrylate films bonded in 25 μm i.d. fused-silica capillaries is developed. The etched silica surface is first modified with an unsaturated organosilane, which is later incorporated into the polymer film. The capillary is then filled with a monomer solution, and polymerization is initiated by incubation at elevated temperature. This thermoinit...

Retention indices in micellar electrokinetic chromatography

The use o f retent ion indices in mice l la r electrokinet ic ch roma tog raphy ( M E K C ) is eva lua ted both f rom a theoretical and a practical point o f view. F undamen t a l equa t ions for the de te rmina t ion o f retent ion indices in M E K C are descr ibed, showing that re tent ion indices are independen t o f the surfac tant concentra t ion. Possibi l i t ies as well as l imita t ion...