| 摘要 |
PROBLEM TO BE SOLVED: To provide a microreactor which can stop a liquid reliably at a predetermined position and restart the operation at the stopped position and has a water-repellent valve having stability of liquid-feeding performance. SOLUTION: The microreactor has a passage on at least one side of a plate chip and, in a part of the passage, a liquid feeding control section which constitutes a water-repellent valve and controls the liquid-feeding rate in the passage and timing of liquid feeding. The liquid feeding control section has an upstream connection port having a cross-sectional area smaller than that of the upstream portion of the passage, a downstream connection port having a cross-sectional area smaller than that of the downstream portion of the passage and a connection port communication section making the upstream and downstream connection ports communicate with each other, and the connection port communication section changes continuously in the cross section. COPYRIGHT: (C)2007,JPO&INPIT
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