Hitachi-high-technologies Corporation

Tomoki Ohashi

Yoshihiro Nagaoka

Yuji Miyahara

Naruo Watanabe

Kei Takenaka

Teruhisa Akashi

The invention is achieved by feeding a reagent using centrifugal force, without providing a valve for controlling the flow rate of the reagent in the reagent flow path. A chemical analyzer is used which comprises a structure that is supported so as to be rotatable, said structure comprising a capturing section for capturing specific chemical substances from a specimen, specimen containers and reagent containers including washing solution containers. The washing solution containers and the other reagent containers comprise a liquid outlet port which is provided at the side opposite to the rotation center side, and the capturing section is held in the structure, closer to the outer periphery side than the specimen container and washing solution and the other reagent containers, and a flow path is provided, with a bent flow path portion which returns to the rotation center side, and which at a particular stage prevents the flow of liquid from the washing solution containers to the capturing section, and at another stage, forms the liquid flow due to the centrifugal force from the rotation of the structure.

Extractor chemical analyzer and chemical analyzing method

In a chemical analysis apparatus for extracting a specific substance, such as nucleic acid, from a sample containing a plurality of chemical substances, solutions remaining in valves are prevented so that a reagent in an earlier step does not contaminate the subsequent steps. Predetermined quantities of solutions are carried and supplied by centrifugal force without providing valves for controlling the flow of the solutions. After perforating the lids of ventilation holescommunicated with a detection containerand disposal containersandin an analysis disc, the analysis discis rotated to supply and carry a predetermined quantity of the sample.

Growing community of inventors

Tsuchiura, Japan

Tomoki Ohashi