Electrophoresis chip, electrophoresis apparatus, and method for analyzing sample by capillary electrophoresis

Abstract

An electrophoresis chip that can be small and simple and that can analyze a sample with high accuracy is provided. The electrophoresis chip includes an upper substratea lower substratean introduction reservoira recovery reservoirand a capillary channel for sample analysisThe introduction reservoirand the recovery reservoirare formed in the lower substrateThe introduction reservoirand the recovery reservoirare in communication with each other via the capillary channel for sample analysisThe introduction reservoirreceives a sample to be measured. The sample is electrophoretically introduced directly into the capillary channel for sample analysisby creating a potential difference between the introduction reservoirand the recovery reservoirand is also analyzed in the capillary channel for sample analysisduring the separation of the sample while the sample is being continuously supplied.