Patent ID: 8721859

Claim:
An electrophoresis analysis apparatus comprising: a microchip comprising a channel; a first stage configured to hold the microchip and a second stage configured to hold the microchip thereafter, a cooling unit configured to cool the microchip; wherein the cooling unit includes a first cooling unit located on the first stage configured to cool the microchip when placed on the first stage, and a second cooling unit located on the second stage configured to cool the microchip when thereafter placed on the second stage, a voltage application unit configured to apply a voltage to a buffer solution filled in the channel of the microchip on the second stage; an optical analysis unit configured to apply, through the microchip, an optical analysis of a sample introduced in the channel on the second stage; a control unit configured to control the cooling unit, the voltage application unit and the optical analysis unit; and wherein, the control unit is configured, when the microchip is placed on the first stage, to cool the microchip with the first cooling unit, and when the microchip is thereafter placed on the second stage, the control unit is configured to cause the second cooling unit increase output immediately before executing a voltage application by the voltage application unit and optical analysis by the optical analysis unit while cooling the microchip with the second cooling unit and to reduce output of the second cooling unit after operations of the voltage application unit and optical analysis unit have ended.