Olympus Optical Company, Ltd.

Beckman Coulter, Inc.

Shigeru Yoshinari

Masao Ushikubo

Yawara Nagai

Nobuyoshi Suzuki

Kosaku Tsuboshima

Norichika Fukushima

A dispensing apparatus includes a syringe which has a piston and sucks and discharges a liquid; and a storage unit which stores therein a reference driving profile indicating a reference of a driving position and a driving time at starting the piston. The apparatus also includes a position detector which detects an actual driving position of the piston; a timer which measures an actual driving time of the piston; and a driving controller which controls driving of the piston based on the reference driving profile, the driving controller creating an actual driving profile based on the actual driving position and the actual driving time of the piston, and the driving controller comparing the reference driving profile with the actual driving profile to determine based on a result of the comparing whether the dispensing is proper or not.

Dispensing apparatus, dispensing method, and analyzer

Indicator for a blood analyzer

Automatic chemical analyzer

The disclosed apparatus quickly measures ionic concentration of an electrolyte with an ion sensitive electrode means, by using a number of measuring cups disposed along a circle on a turntable and a series of treating stages fixed along but outside the turntable so as to face different measuring cups as the turntable stops at different angular positions, whereby various treatments necessary for the ionic concentration measurement are carried out simultaneously in parallel at different measuring cups, so as to shorten the measuring time of the ionic concentration.

Ionic concentration measuring apparatus and method

A liquid treating device for chemical analysis apparatus which is provided with a nozzle for successively sucking various kinds of liquids such as a test liquid, wash liquid, reagent, standard liquid having a known ion concentration or the like and having one end connected to a liquid sucking means and another end operative to be penetrated into a liquid to be treated, said nozzle being surrounded by a cylindrical cell provided at its upper and lower end portions with branch pipes selectively connected to a wash liquid supply means. When both the liquid sucking means and wash liquid supply means are operative, the inner and outer wall of the nozzle are washed with the washed liquid.

Liquid treating device for chemical analysis apparatus

An apparatus for measuring ion activities comprising an electrode assembly, a sample cup, a mechanism for moving up and down said electrode assembly, a pipette for injecting a sample fluid and a system for injecting a reference solution, and so operating as to inject a sample fluid into said sample cup with the pipette for injecting sample fluid, move up and down said electrode assembly for assuring intimate contact between said electrode assembly and said sample fluid, measure ion activities in said sample fluid, inject a reference solution through said reference solution injecting system, wash said electrode assembly, discard the reference solution used for washing, inject the reference solution once again, measure ion activities in said reference solution and determine correct ion activities in said sample fluid on the basis of the levels of ion activities measured in said sample solution and those measured in said reference solution.

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Tokyo, Japan

Shigeru Yoshinari