Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Alexandra Höltzel"'
Confinement Effects on Distribution and Transport of Neutral Solutes in a Small Hydrophobic Nanopore
Publikováno v:
The Journal of Physical Chemistry B. 126:7781-7795
Molecular dynamics simulations are used to study confinement effects in small cylindrical silica pores with extended hydrophobic surface functionalization as realized, for example, in reversed-phase liquid chromatography (RPLC) columns. In particular
Publikováno v:
The Journal of Physical Chemistry C. 126:2336-2348
Publikováno v:
Reaction Chemistry & Engineering. 7:2035-2044
A system allowing the automatic change of LED arrays (normalized to the number of emitted photons) is presented to study photochemical reactions in continuous flow for their wavelength dependence.
Publikováno v:
The Journal of Physical Chemistry B. 125:11320-11336
The interfacial phenomena behind analyte separation in a reversed-phase liquid chromatography column take place nearly exclusively inside the silica mesopores. Their cylindrical geometry can be expected to shape the properties of the chromatographic
Publikováno v:
The journal of physical chemistry. B. 126(49)
Fast transport of retained analytes in reversed-phase liquid chromatography occurs through surface diffusion in the organic-solvent (OS)-enriched interfacial "ditch" region between the hydrophobic stationary phase and the water (W)-OS mobile phase. T
Autor:
Nikita Nobel, Moritz Kroll, Claudia Redenbach, Marvin Cronau, Bernhard Roling, Sarah L. Karstens, Ulrich Tallarek, Sabine Schlabach, Alexandra Höltzel
Publikováno v:
Batteries & supercaps, 4 (8), 1363-1373
Publikováno v:
Molecular Simulation. 47:306-316
Mass transport under confinement is at the heart of all processes employing functionalised mesoporous silica materials, such as liquid chromatography, heterogeneous catalysis, and gas adsorption. M...
Publikováno v:
Journal of Chromatography A. 1685:463627
An alternative method to the classical fit of semi-empirical, statistical, or artificial intelligence-based models to retention data is proposed to predict surface excess adsorption and retention factors in liquid chromatography. The approach is base
Publikováno v:
The Journal of Physical Chemistry C. 123:21617-21628
Fast surface diffusion in reversed-phase liquid chromatography (RPLC) describes a complex phenomenon that exists in a narrow ditch region where the silica-tethered alkyl chains of the stationary ph...
Autor:
Artur Svidrytski, Alexandra Höltzel, Ulrich Tallarek, Christian Kübel, Dzmitry Hlushkou, Stefan-Johannes Reich, Wu Wang
Publikováno v:
Microporous and Mesoporous Materials. 282:188-196
We quantify confinement effects on hindered transport in mesoporous silica particles through using physical reconstructions of their mesopore space morphology obtained by electron tomography as geometric models in direct diffusion simulations for pas