Patent ID: 7005053

Claim:
A multi-capillary electrophoresis apparatus comprising a multi-capillary array that has a separation medium charged therein for separating a sample and has a sample injection part and a detector part for acquiring information depending on the sample thus separated, a voltage applying mechanism for applying a voltage to an electrification path comprising the sample injection part and the detector part, a thermostat oven that has a chamber part having an air blowing mechanism and a temperature controlling mechanism, and a capillary housing base housing at least a part of the electrification path of the multi-capillary array, a straightening plate having plural openings that is arranged at a position where an air flow formed by the air blowing mechanism inflows into the capillary housing base, and; wherein an open area ratio of a part of the straightening plate near the air blowing mechanism is larger than an open area ratio of a part thereof remote from the air blowing mechanism.