A. L Bulyanitsa, A. A. Evstrapov, G. E. Rudnitskaya
Institute for Analytical Instrumentation RAS, Saint-Petersburg
The paper presents the results of
mathematical modeling of mass transfer processes in a microscale system,
a microfluidic chip channel, during electrophoretic separation of substances.
The method of moments is used to calculate channel lengths and analysis
times required for adequate resolution of a two-component mixture. Models
describing the influence of non-uniform sample distribution in the channel
are discussed and analyzed. The estimates of convective flow rate profiles
are given based on a set of the Poisson-Boltzmann equations under the assumption
that there are no thermal field gradients in the channel.