DISPENSER, AUTOANALYZER AND ON-OFF MEMBER

PROBLEM TO BE SOLVED: To provide a dispenser capable of accurately dispensing a liquid, an autoanalyzer and an on-off member. SOLUTION: The dispenser is equipped with a pipeline 5 (first pipeline) for connecting a liquid holding syringe 4 and a liquid discharge nozzle 2, a pipeline 7 (second pipeline) for connecting the pipeline 5 and a pressure sensor 61 for measuring the pressure in the pipeline 5 and the valve 8 (on-off means) provided on the joint of the pipeline 5 and the pipeline 7 not only to hold the pipeline 5 to an open state but also to perform the on-off operation of the pipeline 5 and the pipeline 7. A valve 8 closes the communication of the pipelines 5 and 7 when the liquid is discharged to the outside by the nozzle 2. COPYRIGHT: (C)2008,JPO&INPIT