Communications

In silico assessment of dielectric constants of magnetic composite sorbents for capillary electrochromatography

A. Yu. Shmykov^a, A. L. Bulyanitsa^a, A. R. Timerbaev<sup>b

a</sup> Institute for Analytical Instrumentation, Russian Academy of Sciences, 198095 St. Petersburg, Russian Federation
^b Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria

Abstract: Based on generalized conductivity theory, simulation models were developed for calculating the dielectric constants of two-component magnetic composites consisting of iron doped barium titanate particles and oligomeric isocyanate, intended for use in capillary electrochromatography. Of these, the best-fitting model, based on the corrected Wiener inequality, allowed for calculating the dielectric constants in good agreement with experimental data, with an average relative standard deviation of less than 6%.

Keywords: capillary electrochromatography, magnetic particles, capillary coatings, polymer composites, dielectric constant, mathematical modeling.

Received: 27.08.2025
Accepted: 26.09.2025

Language: English

DOI: 10.71267/mencom.7905