INJECTOR FOR CAPILLARY ELECTROPHORESIS Russian patent published in 1997 - IPC

FIELD: sample introduction devices. SUBSTANCE: injector has body consisting of two plane-parallel dielectric plates coupled tightly to each other. Analytic channel and input and output sample delivery channels are made in body. The above-indicated channels are formed by three rectangular-section grooves of equal depth positioned on surface of one of plane-parallel plates. Input and output sample delivery channels are brought to analytical channel from two opposite sides relative to analytical channel axis. Analytical channel width is 2-3 times as large as its depth, and width of sample delivery channels is 1.5-2 times less than their depth. Cross-points of analytical channel axis with axes of sampled delivery channels are positioned at distance from each other which is not less than width of sample delivery channels. EFFECT: more effective design. 4 dwg, 2 tbl