Automatic chemical analyzer.

摘要

An automatic chemical analyzer suitable for performing a number of chemical analysis operations is disclosed. Samples in sample containers are sequentially dispensed to an array of reaction vessels. Reagent solutions for the analysis operations are delivered to the reaction vessels from reagent containers (31') using an electrically conductive pipetting tube (39). The reaction solutions in the reaction vessels are monitored by a photometer. To remove the need for visual checking of the amount of the reagents remaining in the containers (31'), when the reagent solutions are sucked into the pipetting tube (39), the liquid levels of the reagent solutions in the reagent containers are detected by a liquid level sensor formed by the pipetting tube (39) and a conductive electrode (61). The amount of each reagent solution remaining is determined from the position of the liquid level sensor on reaching the liquid level and the number of possible dopes of the reagent solution remaining is displayed on a cathode ray tube.