Hitachi, Ltd.

Hitachi High-Tech Corporation

Toshimitsu Noguchi

Shunsuke Kono

Norihisa Okada

Takuya Kambayashi

Akihiro Nojima

Shinichi Taniguchi

Shinichi Kawabe

Hiroaki Kasai

Daisuke Tsutsumi

An ultrasonic transducer holder, which is an embodiment, has a detachable container for containing a liquid sample, and transmits an ultrasonic wave. The ultrasonic transducer holder includes an ultrasonic transducer that emits an ultrasonic wave, and a protective layer that is fixed to the ultrasonic transducer and transmits the ultrasonic wave to the container. The protective layer includes a first surface that is a surface to which the ultrasonic transducer is fixed, and a second surface that is a back surface of the first surface and is designed to fix the container via a contact medium.

Ultrasonic transducer holder, container, and analysis system using same

An arithmetic expression used for estimating a target item of a specimen is more easily incorporated into an optical measurement system. An optical measurement instrument includes an optical analysis unit configured to perform an optical analysis on a specimen and measure an intensity of light as a result of the optical analysis, and an arithmetic processing unit configured to download an arithmetic expression from a server device via a network, and perform a quantitative analysis on a target substance contained in the specimen by substituting the result of the optical analysis by the optical analysis unit into the arithmetic expression.

Optical measurement instrument, server device, and optical measurement method

The object of the invention is to perform, rapidly and at a low cost, a pretreatment of an analysis sample containing a turbid substance. Provided is an analysis sample pretreatment apparatus in which a clarified liquid is obtained by removing a turbid substance from an analysis sample. The analysis sample pretreatment apparatus includes a cell configured to store the analysis sample, and a cell holder in which at least a part of a housing is opened to mount the cell. The cell holder includes an ultrasonic wave transducer and an ultrasonic wave reflection plate that are disposed on facing plane pairs while sandwiching the cell mounted inside the cell holder. The cell includes a first opening unit from which the analysis sample flows in, a second opening unit from which the clarified liquid flows out, and a third opening unit from which the turbid substance is discharged. In a state where the cell is mounted in the cell holder, the first opening unit is provided at a position lower than an upper end of the ultrasonic wave transducer in a vertical direction, or at a position higher than a lower end of the ultrasonic wave transducer in the vertical direction.

System providing an ultrasonic pretreatment for separating particles from an analysis sample

It is possible to reduce a burden on a user in performing a spectroscopic analysis of a liquid sample. There is provided an analysis cell that is detachable and replaceable with respect to an analysis unit and accommodates a liquid sample, the analysis cell including a first wall surface pair that is made of a material transmitting a light, and a second wall surface pair for propagating an ultrasonic wave to the accommodated liquid sample, in which a first wall surface and a second wall surface forming the second wall surface pair and facing each other, are formed of materials having different acoustic impedances.

Analysis cell with wall surfaces having different acoustic impedances and analysis unit including the analysis cell

A turbid matter separating apparatus extracts turbid matter and a supernatant liquid separately from a suspension. The invention is directed to a turbid matter separating apparatus which includes a liquid container which includes a sediment discharge port and a supernatant liquid discharge port and is filled with a suspension containing turbid matter, a sediment valve which is provided in the sediment discharge port, a supernatant liquid valve which is provided in the supernatant liquid discharge port, an ultrasonic irradiator which irradiates the suspension filled in the liquid container with ultrasound, and a control unit which controls the sediment valve, the supernatant liquid valve, and the ultrasonic irradiator, the control unit being configured to control the sediment valve to discharge a sediment and controls a supernatant liquid valve to discharge a supernatant liquid after a predetermined time elapses since the irradiation with ultrasound by the ultrasonic irradiator is stopped.

Turbid matter separating apparatus, turbid matter separating method, and turbid matter separating system

In order to analyze a solution component and a scatterer component in a liquid sample more quickly, there is provided an optical analysis device including a light source unit configured to irradiate a liquid sample with light; a first light receiving unit configured to receive transmitted light emitted from the light source unit and transmitted through the liquid sample; a second light receiving unit configured to receive scattered light emitted from the light source unit and scattered by a scatterer in the liquid sample; an ultrasonic irradiation unit configured to irradiate the liquid sample with an ultrasonic wave; a reflection plate configured to reflect the ultrasonic wave that is emitted from the ultrasonic irradiation unit and propagated through the liquid sample; and a control unit configured to control the light source unit, the first light receiving unit, the second light receiving unit, and the ultrasonic irradiation unit.

Optical analysis device, optical analysis method, and optical analysis

To provide a reaction system capable of analyzing a liquid sample with high accuracy. To provide a reaction system A including: a reaction vessel, a flow channelincluding a deformable unithaving an elastic member, a pump, a flow channel deformation mechanism, a measurement unitand an analysis unit, wherein the measurement unitincludes a light source unitand a light receiving unit, the flow channel deformation mechanismincludes an operation unitfor deforming the deformable unitof the flow channelsuch that a cross-sectional area of the deformable unitis reduced, and the analysis unitis electrically or physically connected to the measurement unitand the flow channel deformation mechanism, and operates the flow channel deformation mechanismbased on a measurement result obtained by the measurement unit

Reaction system and reaction method

An analysis system is provided which enables an optical analysis with high accuracy. An analysis system A in which light is radiated on a liquid sample to analyze the sample includes a reaction partwhich includes a reaction tank, an inlet port, and an outlet port, an analysis partwhich includes an analysis cell, at least one light source part, and at least one light receiving part, and a flow path tubewhich includes a first flow pathand a second flow path. A measurement partof the analysis cellincludes a first measurement portionand a second measurement portion, which have mutually different sectional areas.

Analysis system, analysis bypass, and analysis method

To perform more accurate analysis of a composition of a substance given at a sampling time, provided is an optical analysis apparatus, including: a flow passage, which is connected to a vessel, and is configured to allow a first substance to flow therethrough; an introduction unit, which is provided to the flow passage, and is configured to introduce at least two second substances to the flow passage, to thereby divide the first substance flowing through the flow passage; and a measurement unit, which is provided to the flow passage, and is configured to perform measurement by irradiating the first substance and the second substance flowing through the flow passage with light.

Growing community of inventors

Tokyo, Japan

Toshimitsu Noguchi