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Front cover: Moment theory for the analytical determination of rate constants for solute permeation at the interface of spherical molecular aggregates
Author(s) -
Miyabe Kanji,
Senoo Shiori,
Okayasu Nanami
Publication year - 2019
Publication title -
electrophoresis
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.201970191
Subject(s) - permeation , chemistry , electrokinetic phenomena , reaction rate constant , thermodynamics , elution , diffusion , moment (physics) , analytical chemistry (journal) , chromatography , kinetics , membrane , physics , classical mechanics , biochemistry
DOI: 10.1002/elps.201900182 The cover picture shows the schematic illustration of the kinetic study on solute permeation at the interface of spherical molecular aggregates. Moment theory was used to analytically determine the rate constants of the interfacial solute permeation ( k in and k out ) and partition equilibrium constant ( K p ) from the first absolute and second central moments of elution peaks measured by electrokinetic chromatography (EKC). The moment equations were developed on the basis of the Einstein equation for diffusion and the random walk model. The values of k in and k out of electrically neutral solutes were simultaneously determined in the EKC system, in which sodium dodecylsulfate micelles were used as one example of spherical molecular aggregates.