METHOD AND DEVICE FOR DISCHARGING DROPLET

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PROBLEM TO BE SOLVED : To provide a method and a device for discharging droplets in which an expensive reagent and a rare sample can be easily and positively filled, and bubbles, fine particles, and the like are inhibited from residing in the liquid.SOLUTION : In the method for discharging droplets, the liquid L is discharged to a desired point by using a discharge head 2. The discharge head 2 is provided with a cavity for storing the liquid L, a nozzle communicating with the cavity, and a discharge means for discharging the liquid L stored in the cavity from the nozzle. The method for discharging droplets is characterized by being provided with a process for removing impurities A contained in the liquid L from a flow path 24 in which the liquid L is allowed to flow.