Publications by authors named "Ute Pyell"

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Optimization of a sensitive and robust strategy for micellar electrokinetic chromatographic analysis of sofosbuvir in combination with its co-formulated hepatitis C antiviral drugs.
Azza H Rageh, Fatma A M Abdel-Aal, Ute Pyell

J Chromatogr A· April 2020

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Determination of the Exact Particle Radius Distribution for Silica Nanoparticles via Capillary Electrophoresis and Modeling the Electrophoretic Mobility with a Modified Analytic Approximation.
Anna Fichtner, Alaa Jalil, Ute Pyell

Langmuir· March 2017

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Mixed-mode acrylamide-based continuous beds bearing tert-butyl groups for capillary electrochromatography synthesized via complexation of N-tert-butylacrylamide with a water-soluble cyclodextrin. Part I: Retention properties.
Ayat Allah Al-Massaedh, Ute Pyell

J Chromatogr A· December 2016

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Elucidation of the Enantiodiscrimination Properties of a Nonracemic Chiral Alignment Medium through Gel-based Capillary Electrochromatography: Separation of the Mefloquine Stereoisomers.
Ayat Allah Al-Massaedh, Manuel Schmidt, Ute Pyell, Uwe M Reinscheid

ChemistryOpen· October 2016

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In-capillary derivatization with o-phthalaldehyde in the presence of 3-mercaptopropionic acid for the simultaneous determination of monosodium glutamate, benzoic acid, and sorbic acid in food samples via capillary electrophoresis with ultraviolet detection.
Hnin-Pwint Aung, Ute Pyell

J Chromatogr A· June 2016

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Characterization of hydrophilic coated gold nanoparticles via capillary electrophoresis and Taylor dispersion analysis. Part II: Determination of the hydrodynamic radius distribution - Comparison with asymmetric flow field-flow fractionation.
Ute Pyell, Alaa H Jalil, Dominic A Urban, Christian Pfeiffer, Beatriz Pelaz

J Colloid Interface Sci· November 2015

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Characterization of gold nanoparticles with different hydrophilic coatings via capillary electrophoresis and Taylor dispersion analysis. Part I: determination of the zeta potential employing a modified analytic approximation.
Ute Pyell, Alaa H Jalil, Christian Pfeiffer, Beatriz Pelaz, Wolfgang J Parak

J Colloid Interface Sci· July 2015

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Boronate affinity-assisted MEKC separation of highly hydrophilic urinary nucleosides using imidazolium-based ionic liquid type surfactant as pseudostationary phase.
Azza H Rageh, Ute Pyell

Electrophoresis· March 2015

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Determination of urinary nucleosides via borate complexation capillary electrophoresis combined with dynamic pH junction-sweeping-large volume sample stacking as three sequential steps for their on-line enrichment.
Azza H Rageh, Achim Kaltz, Ute Pyell

Anal Bioanal Chem· September 2014

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Adamantyl-group containing mixed-mode acrylamide-based continuous beds for capillary electrochromatography. Part IV: investigation of the chromatographic efficiency dependent on the retention mode.
Ayat Allah Al-Massaedh, Ute Pyell

J Chromatogr A· July 2014

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Processes involved in sweeping as sample enrichment method in cyclodextrin-modified micellar electrokinetic chromatography of hydrophobic basic analytes.
Mohamed El-Awady, Ute Pyell

Electrophoresis· March 2014

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Adamantyl-group containing mixed-mode acrylamide-based continuous beds for capillary electrochromatography. Part III. Optimization of the chromatographic efficiency.
Ayat Allah Al-Massaedh, Ute Pyell

J Chromatogr A· January 2014

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Adamantyl-group containing mixed-mode acrylamide-based continuous beds for capillary electrochromatography. Part II. Characterization of the synthesized monoliths by inverse size exclusion chromatography and scanning electron microscopy.
Ayat Allah Al-Massaedh, Ute Pyell

J Chromatogr A· January 2014

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Imidazolium-based ionic liquid-type surfactant as pseudostationary phase in micellar electrokinetic chromatography of highly hydrophilic urinary nucleosides.
Azza H Rageh, Ute Pyell

J Chromatogr A· November 2013

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Robust analysis of the hydrophobic basic analytes loratadine and desloratadine in pharmaceutical preparations and biological fluids by sweeping-cyclodextrin-modified micellar electrokinetic chromatography.
Mohamed El-Awady, Fathalla Belal, Ute Pyell

J Chromatogr A· September 2013

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Sweeping as a multistep enrichment process in micellar electrokinetic chromatography: the retention factor gradient effect.
Mohamed El-Awady, Ute Pyell

J Chromatogr A· July 2013

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A
Adamantyl-group containing mixed-mode acrylamide-based continuous beds for capillary electrochromatography. Part I: study of a synthesis procedure including solubilization of N-adamantyl-acrylamide via complex formation with a water-soluble cyclodextrin.
Ayat Allah Al-Massaedh, Ute Pyell

J Chromatogr A· April 2013

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Processes involved in sweeping under inhomogeneous electric field conditions as sample enrichment procedure in micellar electrokinetic chromatography.
Mohamed El-Awady, Carolin Huhn, Ute Pyell

J Chromatogr A· November 2012

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Sensitivity enhancement in near-field photothermal-lens detection in capillary electrophoresis using laser-induced online precipitation.
Dmitry A Nedosekin, Werner Faubel, Mikhail A Proskurnin, Ute Pyell

Appl Spectrosc· November 2011

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Regulation of the retention factor for weak acids in micellar electrokinetic chromatography with cationic surfactant via variation of the chloride concentration.
Irma Orentaitė, Audrius Maruška, Ute Pyell

Electrophoresis· February 2011

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Diffusion as major source of band broadening in field-amplified sample stacking under negligible electroosmotic flow velocity conditions.
Carolin Huhn, Ute Pyell

J Chromatogr A· June 2010

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Characterization of nanoparticles by capillary electromigration separation techniques.
Ute Pyell

Electrophoresis· March 2010

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Calibration-free concentration determination of charged colloidal nanoparticles and determination of effective charges by capillary isotachophoresis.
Ute Pyell, Wendelin Bücking, Carolin Huhn, Barbara Herrmann, Alexey Merkoulov

Anal Bioanal Chem· November 2009

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Sensitivity enhancement of thermal-lens spectrometry using laser-induced precipitation.
Dmitry A Nedosekin, Werner Faubel, Mikhail A Proskurnin, Ute Pyell

Anal Sci· May 2009

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Separation of very hydrophobic analytes by micellar electrokinetic chromatography IV. Modeling of the effective electrophoretic mobility from carbon number equivalents and octanol-water partition coefficients.
Carolin Huhn, Ute Pyell

J Chromatogr A· July 2008

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