NOZZLE CLEANING METHOD AND AUTOMATED ANALYZER

摘要

The nozzle cleaning method includes the following steps: a first cleaning step in which a pre-pressurization liquid is discharged from a dispensing nozzle in a first cleaning position so as to clean the inside wall thereof and a first cleaning liquid is applied to the outside wall of the dispensing nozzle so as to clean said outside wall; a second cleaning step in which a second cleaning liquid is suctioned into the dispensing nozzle in a second cleaning position so as to clean the inside wall thereof; and a third cleaning step in which the second cleaning liquid is discharged from the dispensing nozzle in a third cleaning position so as to clean the inside wall thereof and a third cleaning liquid is applied to the outside wall of the dispensing nozzle so as to clean said outside wall.

主权项

1. A nozzle cleaning method comprising:
a first cleaning step of cleaning an inner wall surface of a dispensing nozzle by discharging a pre-compression solution from the inside of the dispensing nozzle, and cleaning an outer wall surface of the dispensing nozzle by discharging a cleaning solution from a first discharge port to the outer wall surface of the dispensing nozzle; a second cleaning step of cleaning the inner wall surface of the dispensing nozzle by aspirating the cleaning solution stored in a storage tank into the dispensing nozzle; and a third cleaning step of cleaning the inner wall surface of the dispensing nozzle by discharging the cleaning solution aspirated into the dispensing nozzle, and cleaning the outer wall surface of the dispensing nozzle by discharging the cleaning solution from a second discharge port to the outer wall surface of the dispensing nozzle, wherein multiple dispensing nozzles are moved along a cleaning tank in which the multiple storage tanks and a plurality of pairs of the first and second discharge ports are alternately arranged so as to respectively and concurrently perform the first to third cleaning steps on the multiple dispensing nozzles.