G - Physics – 01 – N
Patent
G - Physics
01
N
150/24
G01N 1/10 (2006.01) G01N 35/10 (2006.01) G01N 35/04 (2006.01)
Patent
CA 2022373
ABSTRACT In a chemical analyzing apparatus according to the invention, sample containers, reagent containers, a cleaning port, a waste port, reaction containers, and a measuring cuvette are arranged along one circum- ference. Among them, the sample containers and the reagent containers are placed in a common place. An operator inputs from a keyboard information identifying those positions in the common space at which samples and reagents are loaded, for filing the infor- mation into a microcomputer. The filed information is displayed on a screen. The maximum total number of containers capable of being set in the common space is constant. But, the numbers of sample and reagent containers can be changed through the keyboard such that when the number of sample containers is large, the number of containers allocated for the reagents is reduced, or vice versa. In the chemical analyzing apparatus, a pipetting nozzle is turned along the circumference and can be moved vertically at required positions. Transfer operations for various liquids are all carried out by a single nozzle. The nozzle is operated to impart a sample and a reagent to one reaction container. Then, the operation of sucking a mixed solution from the reac- tion container into the nozzle and returning the sucked solution to the reaction container again is repeated for full mixing. The reaction solution is supplied to the cuvette by the nozzle and subjected to measurement of extinction, fluorescence or scattered light. The reaction solution after the measurement is discarded to the waste port by the nozzle. The nozzle is positioned at the cleaning port on demand, where the nozzle is cleaned by discharging a cleaning liquid through itself.
Maekoya Chiaki
Omori Akira
Takata Yoshinori
Hitachi Ltd.
Kirby Eades Gale Baker
Maekoya Chiaki
Omori Akira
Takata Yoshinori
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