Patent ID: 9550184
Date: 2017-01-24
CPC Classifications: B01L,G01N

Claim:
1. A reactor plate comprising: a reaction well; a reaction well channel connected to the reaction well, the reaction well channel being constituted from a groove formed in the contact surface between two members bonded together or from the groove and a through hole formed in the member, the reaction well channel including a main channel, a metering channel branched off the main channel and having a predetermined capacity, and an injection channel of which one end is directly connected to the metering channel and the other end is connected to the reaction well, the injection channel being formed narrower than the metering channel not so as to allow the passage of a liquid at a liquid introduction pressure applied to introduce the liquid into the main channel and the metering channel and at a purge pressure applied to purge the liquid from the main channel but so as to allow the passage of the liquid at a pressure higher than the liquid introduction pressure and the purge pressure; a reaction well air vent channel directly connected to the reaction well and formed separately from the reaction well channel; a variable member having an internal capacity being passively variable by expanding and contracting, the variable member being provided in the reactor plate; and a switching valve being configured to connect the main channel and the reaction well air vent channel to the variable member so as to allow moving a gas in the main channel and the reaction well air vent channel to the variable member in a closed system; thereby the main channel and the reaction well air vent channel are kept hermetically sealed, wherein the main channel has an elongated structure defining a flow path extending in the direction of elongation and wherein the metering channel branches from a side of the flow path.