total velocity of the analyte, νtotin capillary electrophoresis

The sum of electrophoretic velocity, $ν ep$ , of an ion and the electroosmotic velocity, $ν eo$ .

$ν tot = ν ep + ν eo$

This quantity can be measured experimentally as the effective length of the capillary divided by the migration time ( $L eff t m$ ).

Notes:

Depending on the signs and relative magnitudes of these velocities, the total velocity of an analyte can have either the same or the opposite direction to the electro- osmotic velocity.
The total velocity is the velocity of the ion measured as a displacement relative to the capillary wall divided by time.

Source:

PAC, 2004, 76, 443 (Terminology for analytical capillary electromigration techniques (IUPAC Recommendations 2003)) on page 449