migration time, t m in capillary electrophoresis, in micellar electrokinetic chromatography

The time required for the analyte to move through the effective length of the capillary, L eff, that is, from the sample introduction point to the detection point.
PAC, 2004, 76, 443 (Terminology for analytical capillary electromigration techniques (IUPAC Recommendations 2003)) on page 448