JPS6350063U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the main part configuration showing one embodiment of this invention. 1... Reaction tube, 2... Flow cell, 3... Flow cell nozzle, 5, 6... Detergent tank, 7, 8... Detergent channel, 9, 10... Branch channel, 11, 12... Detergent discharge nozzle, 13, 14... Flow Path switching means, 15... Alkaline aqueous solution tank, 16... Alkaline aqueous solution flow path, 1
7... Alkaline aqueous solution discharge nozzle, 18, 19... Detergent discharge means, 20... Alkaline aqueous solution discharge means 21
...control means.

Claims (1)

[Claims for Utility Model Registration] A sample solution and a reagent solution are dispensed into reaction tubes that are intermittently conveyed one after another, and each of the obtained reaction solutions is sucked into a flow cell using a flow cell nozzle to detect specific components in the sample solution. The automatic system is configured to measure the reaction liquid into the flow cell, then invert the reaction tube, transport it, and return it to its original position while discharging pure water into the reaction tube to clean the reaction tube. The analyzer includes a plurality of detergent tanks for storing a plurality of detergents used for each measurement item, a plurality of detergent channels for guiding the detergent, and a plurality of branches connected to each of the detergent channels. a flow path, two detergent discharge nozzles arranged to discharge detergent into the reaction tube at a position before the flow cell and a position before the pure water discharge position, respectively; one of these detergent discharge nozzles and the detergent; two flow path switching means that switchably connect the flow path and the other detergent nozzle to the branch flow path, an alkaline aqueous solution tank for storing the alkaline aqueous solution, and an alkaline aqueous solution flow path for guiding the alkaline aqueous solution. , an alkaline aqueous solution discharge nozzle attached to the outlet end of the alkaline aqueous solution flow path and arranged so as to be able to discharge the alkaline aqueous solution to the reaction tube located before the flow cell, and a detergent and alkaline aqueous solution tank in the detergent tank. A plurality of detergent discharge means and one alkaline aqueous solution discharge means are provided for discharging the alkaline aqueous solution into each of the detergent channels and the alkaline aqueous solution flow channel, and one of the flow channel switching means is operated to switch the desired detergent. When the reaction tube into which this detergent has been dispensed reaches the position of the flow cell, the detergent is sucked into the flow cell by the flow cell nozzle, and then the reaction tube is filled with pure water. Before washing, switch the other flow path switching means to discharge the same detergent as the above detergent into the reaction tube from the other detergent nozzle to wash the reaction tube, and when washing the flow cell with an alkaline aqueous solution, use the detergent. An automatic analyzer characterized in that it is configured to clean the inside of the flow cell by suctioning an alkaline aqueous solution into the flow cell in the same manner as when cleaning the flow cell.