Cationic and perfluorinated polymeric pseudostationary phases for electrokinetic chromatography

Rauk, Erika; Kotzev, Anton; Laschewsky, André; Palmer, Christopher P.

doi:10.1016/j.chroma.2005.07.114

Cited by 10 publications

(10 citation statements)

References 47 publications

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“…2), two of them with fluorinated hydrophobic side chains, were characterized with respect to performance and selectivity in EKC [31]. This was the first report of fluorinated polymeric PSPs, and it was anticipated that these polymers would provide highly unique selectivity akin to that which had been reported previously for lithium pefluorooctane sulfonic acid (LiPFOS) [32,33].…”

Section: Achiral Polymersmentioning

confidence: 92%

Recent progress in the use of ionic polymers as pseudostationary phases for EKC

Palmer

2007

Electrophoresis

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Section: Achiral Polymersmentioning

confidence: 92%

Recent progress in the use of ionic polymers as pseudostationary phases for EKC

Palmer

2007

Electrophoresis

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“…2F and G) were studied and compared with that of structural analogs with hydrocarbon side chains ( Fig. 2) [42]. The perfluorinated anionic surfactant lithium perfluorooctane sulfonic acid (LiPFOS) had previously been shown to have significantly different selectivity from analogous hydrocarbon surfactants [43,44], and it was hoped that this selectivity difference would also be apparent in the polymeric PSPs.…”

Section: Structural Studiesmentioning

confidence: 99%

Electrokinetic chromatography with polymeric pseudostationary phases

Palmer¹

2008

J of Separation Science

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Recent research and development efforts concerning polymeric pseudostationary phases (PSPs) for electrokinetic chromatography are reviewed. The introduction of new materials, characterization of structural effects on performance and selectivity, applications, and the use of polymeric PSPs with mass spectrometric detection are considered. Very interesting results concerning the effects of polymer structure have been reported. Significant developments have also been reported in the development of novel applications of polymeric PSPs, particularly for sample preconcentration using micellar affinity gradient focusing. The use of mass spectrometric detection with electrokinetic chromatography has seen significant development, and recent reports indicate that this is a robust and sensitive approach.

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“…The separation in EKC is based on the partitioning of analytes between buffer solution and pseudostationary phases (PSPs). Although successfully used as PSPs in many separation applications, conventional materials, especially micelles, have some drawbacks as PSPs in EKC . It stills a promising work to introduce new PSPs with diverse selectivities to perform separation of different sets of chemicals .…”

Section: Introductionmentioning

confidence: 99%

“…Although successfully used as PSPs in many separation applications, conventional materials, especially micelles, have some drawbacks as PSPs in EKC. [11][12][13][14][15][16] It stills a promising work to introduce new PSPs with diverse selectivities to perform separation of different sets of chemicals. 17 In 2017, our group explored a liposome capillary electrokinetic chromatography (LEKC) using soybean phosphatidylcholine liposome (SPC-Lip) as PSPs.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the enantioselectivity of capillary electrokinetic chromatography using ethanediamine‐bonded poly (glycidyl methacrylate) microspheres as the pseudostationary phases

Sun

Tao

et al. 2019

Chirality

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In this work, a new capillary electrokinetic chromatography (EKC) approach using ethanediamine‐bonded poly (glycidyl methacrylate) (Ami‐PGMA) microspheres as pseudostationary phases (PSPs) for enantioseparation with a polysaccharide, chondroitin sulfate E (CSE), as the chiral selector. The CSE@Ami‐PGMA EKC system was applied to enantioseparate basic drugs, and distinct improved separations of tested enantiomers were obtained while comparing with the single CSE system (the resolution increased from 0.41 to 1.26 for nefopam, from 1.24 to 2.15 for laudanosine, and from 0.92 to 2.36 for amlodipine). The Ami‐PGMA microspheres were fully characterized by scanning electron microscopy (SEM) and Fourier Transform Infrared (FT‐IR) spectroscopy, and the results showed Ami‐PGMA microspheres were uniform and spherical in size (1 μm). Several principal parameters were systematically investigated, and the optimal chiral separations were obtained with Tris/H3PO4 (20 mM, pH 2.4, and 3.4 for NEF) containing 2.5% (w/v) CSE and 20‐μg Ami‐PGMA microspheres in 20°C. Subsequently, the concentrations of Ami‐PGMA microspheres and CSE were proved to be the dominant factors for the separation in the CSE@Ami‐PGMA EKC system by Statistical Product and Service Solutions (SPSS).

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Cationic and perfluorinated polymeric pseudostationary phases for electrokinetic chromatography

Cited by 10 publications

References 47 publications

Recent progress in the use of ionic polymers as pseudostationary phases for EKC

Recent progress in the use of ionic polymers as pseudostationary phases for EKC

Electrokinetic chromatography with polymeric pseudostationary phases

Evaluation of the enantioselectivity of capillary electrokinetic chromatography using ethanediamine‐bonded poly (glycidyl methacrylate) microspheres as the pseudostationary phases

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