Abstract: It is an object of the present invention to provide an electrophoresis device that allows for reducing the temperature variation in the thermostat and that makes it easy to attach/detach the capillary. The electrophoresis device according to an aspect of the present invention includes: a capillary array unit that includes a capillary and a support that supports the capillary; a pump mechanism having one end of the capillary being connected thereto and for delivering a separation medium to the capillary; a detection unit that emits light to a portion of the capillary and performs a measurement on a sample in the capillary; and a thermostat that houses the capillary therein and performs temperature control on the capillary, in which the thermostat includes a heat source and a fan that sends air into the thermostat, and in which the thermostat or the capillary array unit includes a straightening plate.

Abstract: In an electrophoresis apparatus using a capillary, electrophoresis using a single capillary sometimes requires replacement of a sieving matrix. Replacement with a different sieving matrix has conventionally required cleaning with sieving matrix cleaning liquid, which has increased costs and time required. An electrophoresis apparatus according to the present invention comprises an anodic capillary head provided at a distal end of the capillary, a sieving matrix container filled with a sieving matrix used for electrophoresis, and a filling mechanism for filling the capillary with the sieving matrix via the sieving matrix container. The filling mechanism fills the capillary, which is already filled with the sieving matrix, with a sieving matrix different from the already-filled sieving matrix without using sieving matrix cleaning liquid.

Abstract: Since a few kilovolts of an application voltage is necessary to take in a biological sample, an EWOD electrode, for example, is destroyed, and the electrode becomes non-reusable for moving a droplet. Therefore, an object of the present invention is to provide a biochemical cartridge usable for multiple times for taking in a biological sample by a capillary array, for example, and a biochemical analysis device using the biochemical cartridge. In order to solve the problem, the biochemical cartridge according to the present invention includes a passage through which a sample is transported, a plurality of electrodes disposed on the passage along a direction in which a sample is transported, the plurality of electrodes being provided to transport a sample, and an opening provided opposite to the plurality of electrodes disposed on a downstream side of the passage.

Abstract: In an electrophoresis apparatus using a capillary, electrophoresis using a single capillary sometimes requires replacement of a sieving matrix. Replacement with a different sieving matrix has conventionally required cleaning with sieving matrix cleaning liquid, which has increased costs and time required. An electrophoresis apparatus according to the present invention comprises an anodic capillary head provided at a distal end of the capillary, a sieving matrix container filled with a sieving matrix used for electrophoresis, and a filling mechanism for filling the capillary with the sieving matrix via the sieving matrix container. The filling mechanism fills the capillary, which is already filled with the sieving matrix, with a sieving matrix different from the already-filled sieving matrix without using sieving matrix cleaning liquid.