| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample introducing microdevice that reduces the amount of the sample remaining internally during stop of introduction, but also introduces only a necessary amount of the sample in necessary timing. SOLUTION: A fine channel 12a is formed on the inlet side of a pressurizing chamber 1a, a nozzle-shaped channel 14a having a capillary effect is formed on the outlet side of the pressurizing chamber 1a through a fine channel 13a, the fine channel 18a meeting with the nozzle-shaped channel 14a is formed at a confluent point 19a and the channel 25a branched from the nozzle-shaped channel 14a is formed at a branch point 38a. A common channel section 29a having a channel between the fine channels 18a and 25a is provided between the fine channel 18a and 25a and the nozzle-shaped channel 14a, the excessive sample supplied from a supply port 40a is discharged from a discharge port 27a and a mixed sample of the liquids respectively supplied from supply ports 7a and 40a is discharged by necessary amount from a nozzle orifice 30a in necessary timing. COPYRIGHT: (C)2009,JPO&INPIT |
