Channel flow network at low electric field with high flow resistance compensation pattern

This paper presents the possible factors associated with the degradation that can be generated in a channel network structure and provides a solution to overcome this and assure high reliability. Cyclic capillary electrophoresis, which is the one of the channel network structures, has advantages in downsizing and a low operation voltage. However, there are some problems such as sample loss when the injected plug encounters the junctions in the middle of the channel. This paper explains the phenomenon of the cyclic CE as an example of the channel network structure. In the new design, the quartz cyclic CE chip showed < 2 % degradation per junction. This means the high resolution CE analysis has 100,000 plate numbers after a three and one quarter cycle (20.4 cm) in just a 4 cm /spl times/ 4 cm chip.