| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microchip for searching the characteristics of a specimen while preventing a gas from getting mixed in a mixing part, with the gas used for separating a reagent from the specimen so as to prevent them from getting mixed with each other in the middle of a flow path. Ž<P>SOLUTION: Assuming that V1 is the volume of the gas used for separating the reagent from the specimen, S1 a cross section of the mixing part for mixing the reagent with the specimen, with the cross section viewed from a flow-path direction of the mixing part, W1 the width of the flow path, and V2 the total volume of the reagent and the specimen, if the following relations hold, (2/π)×S1×W1 >V1 and (2/π)×S1×W1 >V2, then the gas is trapped on a wall surface of the flow path in the mixing part. Accordingly, the reagent and the specimen can be forwarded to a next process while outrunning a gas bubble, allowing the characteristics of the specimen to be investigated. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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