| 摘要 |
PROBLEM TO BE SOLVED: To provide a microchip in which an air bubble contained in a liquid is separated by a simple structure without making the size of a magnet larger. SOLUTION: An uneven electric field is formed in the liquid flowing in a supply passage 24 by using electrodes 31, 32, 33, 34 in an air bubble separation part 30. Therefore, the air bubble contained in the liquid flowing in the supply passage 24 is moved to the weaker direction of the electric field and gathered/captured in the minimum portion of the electric field intensity. As a result, since the air bubble separated from the liquid does neither flow in an observation tank 22 nor stick to the inner wall of a base 11 or a cover 12, each of which is used for forming the observation tank 22, the reaction or culture to be conducted in the observation tank 22 can be observed easily. COPYRIGHT: (C)2007,JPO&INPIT
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