Separation of basic proteins was performed using a homemade tield-modulated capillaryelectrophoresis system. The resolution. elution and even wall adsorption can be regulated byadjusting the radial rather than axial voltage applied. Selection of running buffer and PH tv,as foundto be critical. Separation of basic proteins was performed using a homemade tield-modulated capillary electrophoresis system. The resolution. Elution and even wall adsorption can be regulated by adjusting the radial rather than axial voltage applied. Selection of running buffer and PH tv, as found to be critical.