Chromatographic zone linear velocity

Linear velocity of chromatographic zone as a function of the eluent composition u(c) [as derived in equation (2-38)] in the most simple model of the retention process (partitioning) is... [Pg.67]

The van Deemter rate theory identified three major factors that cause band or zone broadening during the chromatographic process the eddy diffusion or the multi-path effect (A-term), longitudinal diffusion or molecular diffusion of the analyte molecules (B-term), and resistance to mass transfer in the stationary phase (C-term). The broadening of a zone was expressed in terms of the plate height, H, and was described as a function of the average linear velocity of the mobile phase, u. [Pg.71]