Micellar electrokinetic capillary chromatography may be done using surfactants such as sodium dodecyl sulfate, cetyl ammonium bromide, alkyl glucosides, alkyl maltosides, zwitterionic surfactants such as 3-[(3-cholamidopropyl) -dimethylammonio]-1-propane sulfonate (CHAPS), 3-[(3-cholamidopropyl)-dimethylammonio]-2-hydroxy -1-propane sulfonate (CHAPSO), or the like.