| 摘要 |
<p>The present invention provides a liquid delivery control method for delivering a liquid 8 by generating, in a microchannel 3 in which the liquid 8 is present, a differential pressure with respect to the liquid 8 by using a pump 6. The microchannel 3 is provided with a pressure loss varying portion 31 in which pressure loss changes in the direction of flow. The leading end 8a of the liquid 8 is judged to have reached the pressure loss varying portion 31 by detecting a change in pressure between the liquid 8 and the pump 6. With this arrangement, the location of the leading end of the liquid 8 can be properly detected without causing the structure that forms the microchannel 3 to become complex.</p> |
