LIQUID FEEDING SYSTEM FOR MICROCHIP, SAMPLE DETECTION DEVICE, AND LIQUID FEEDING METHOD FOR LIQUID FEEDING SYSTEM FOR MICROCHIP

摘要

Provided are a liquid feeding system for a microchip, capable of accurately detecting even a small amount of a sample, and a method for the liquid feeding system. A liquid feeding system for a microchip performs: a first liquid feeding step in which a sample liquid in a sample liquid containing section is fed in the direction to a primary containing section via a reaction field; a second liquid feeding step in which, after the first liquid feeding step, the sample liquid is fed from the primary containing section in the direction to the reaction field; and a third liquid feeding step in which, after the second liquid feeding step, the feeding of ft sample liquid from the reaction field to the primary containing section and the feeding of the sample liquid from the primary containing section to the reaction field are repeated, and the liquid feeding system for a microchip controls a pump so that a rear side gas-liquid boundary face of the sample liquid in the first liquid feeding step and the front side and rear side gas-liquid boundary faces of the sample liquid in the second and third liquid feeding steps do not pass through the reaction field.