TEMPERATURE EFFECTS IN CAPILLARY ELECTROPHORESIS .2. SOME THEORETICALCALCULATIONS AND PREDICTIONS

The dependence of the temperature excess, theta, in the capillary bore on the applied power, EI, is considered for both natural and forced c onvective cooling, using classical heat equations. The dependence of t heta on EI is found to be linear for forced convection but not for nat ural convection. Use of forced convective cooling and capillaries of l arge outer diameter reduces theta. Direct comparison of the performanc e of different systems can be achieved by consideration of theta. Colu mn performance is ultimately limited by thermal gradients across the c apillary bore.