The Collaborative International Dictionary of English v.0.48:

electrophoretic \electrophoretic\ adj.
   of or pertaining to electrophoresis; electrophoretic
   mobility; accomplished using electrophoresis; as,
   electrophoretic separation; electrophoretic analysis.

   Syn: cataphoretic.
        [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

electrophoretic
    adj 1: of or relating to electrophoresis [syn:
           electrophoretic, cataphoretic]