| 摘要 |
PURPOSE:To prevent a specimen from loosing due to the adsorption and from lowering the efficiency of division by locating a specimen dividing cell array in the way of an electrophoretic migration passage or a specimen passage right after the migration passage. CONSTITUTION:A DNA piece specimen is injected in an upper portion 11 of a capillary gel. A fluorescent indication is applied to the specimen and a voltage is applied to electrodes 9, 10 to cause the electrophoretic migration thereof. The specimen is divide in accordance with the size and the appearance can be monitored by means of a fluorescent detector 14. The specimen passes through a small hole 13 to enter dividing cells 3. The specimen stops at the region for a long time. When the passing of the specimen is detected by the fluorescent monitoring, a dividing cell cartridge 2 is moved by means of a motor 15 from the detecting section to the dividing section by delaying a time wherein an electrophoretic migration time is considered. Each of the cells 3 are supported between upper and lower support plates 4, 5 so that the specimen is held therein. Each of the cells 3 has small hole 12 opened on the lower respective section and the support plate 5 has small holes corresponding to the cells to form a respective electrophoretic passage. Each small hole on the bottom of each of the cells 3 is so sized as to neglect a leakage of DNA therethrough. |
