| 摘要 |
PROBLEM TO BE SOLVED: To more enhance reaction efficiency in a biochemical testing device utilizing a microfluid.SOLUTION: A test solution, wherein the concentration distribution of a biochemical substance AG is produced in the height direction of a flow channel by solid-liquid reaction, is not reciprocated through a fine flow channel MT as it is, but, when the test solution is applied to a return passage, the test solution is reversed so as to pass the vicinity of a solid-liquid reaction part on the side high in the concentration of the biochemical substance AG so as to reverse the concentration distribution. |
