| 摘要 |
PURPOSE: To provide a device which is available in laboratories, has few moving parts, is high in reliability and accurate, and can reproduce a next gel from a gel. CONSTITUTION: The gradient gel of electrophoresis is manufactured by this device in which a pair of syringes 21, 22 are disposed on a susceptor 12 provided with a synchronously rotating cam 32. Cam trailing parts engaged with the cam 32 are jointed to barrels 23, 24 of the syringes and a spiral path of each cam is transduced into a rate of volume discharged from the syringes 21, 22 by each cam trailing part as the cam 32 rotates. When the discharges from the syringes 21, 22 are compounded into a common stream and directly connected with a housing part of the gel for solidifying the gel, a gradient or other variation in composition is obtained with the rate set by the cam 32. The gradient or variation in the composition is determined by curves of the cam 32 and is independent of the rotation rate of the cam 32 and the uniformity of the rotation. This device is designed as a manually operating device having high accuracy and high reproducability. |
