Shimadzu Corporation

Ryutaro Oda

Masahide Gunji

Kengo Aoki

Motoo Kinoshita

Mitsuo Kitaoka

Kunihiko Okubo

Hiroshi Nakano

Keiso Kawamoto

A centrifugal field-flow fractionation device includes an annular rotor, an arc-shaped channel member, a rotation drive unit, and a restriction unit. A channel memberis provided along an inner peripheral surface of the rotor, has therein a channelfor a liquid sample by laminating a plurality of layers, and has an inlet for the liquid sample to the channeland an outlet for the liquid sample from the channel. By rotating the rotor, particles in the liquid sample in the channelare classified by centrifugal force. A restriction spacerrestricts the channelfrom being compressed to a height less than a certain height when the channel memberis compressed and deformed in a laminating direction.

Centrifugal field-flow fractionation device having a restricting member to prevent deformation of an intermediate layer

A plurality of light-receiving elements that are arranged in two rows are provided on a light-receiving surface of a detector. A slit image formed on this detector. One group of a plurality of the light-receiving elements are arranged consecutively in a displacement direction of the slit image to form a row (one light-receiving elements row), and another group of a plurality of the light-receiving elements are also arranged consecutively in the displacement direction of the slit image to form a row (another light-receiving elements row). The one light-receiving elements row and the other light-receiving elements row are in contact with each other.

Differential refractometer

A spectrometric measurement device capable of determining an optimal wavelength for detecting an objective component is provided. One mode of the present invention is a fluorescence measurement device for casting an excitation light of a predetermined wavelength into or onto a sample and detecting a predetermined wavelength of light contained in the fluorescence generated from the sample irradiated with the excitation light.

Spectrometric measurement device and program

The fluorescence detector includes: a flow cell provided on a flow passage for flowing a sample; a sample temperature control block for keeping the flow cell and the flow passage located on the sample inlet side of the flow cell at a constant temperature; an excitation optical system; a fluorescence optical system having a photodetector and used for guiding fluorescence emitted from a sample flowing through the flow cell to the photodetector and detecting the fluorescence; a photodetector temperature control block for keeping the photodetector at a constant temperature; and a temperature control unit having a simultaneous temperature control block united with both the temperature control blocks and a temperature control system provided to be in contact with the simultaneous temperature control block to heat and/or cool the simultaneous temperature control block.

Fluorescence detector and liquid chromatograph having the fluorescence detector

An odor measuring device has a collector tube containing an adsorbent which adsorbs sample components with odor at normal temperatures and desorbs them when heated. Flow routes for a sample gas containing sample components to be detected and an inactive gas are connected through valves to this collector tube. Initially, a sample gas containing sample components with odor is introduced into the collector tube at normal temperature such that the sample components to be detected are adsorbed to the adsorbent. Thereafter, the valves are switched such that the inactive gas is introduced into the collector tube while its temperature is increased by a heater, causing the sample components to be desorbed into the inactive gas and to be transported into an odor sensor. If odor sensors requiring oxygen for detection are used, an oxygen-containing gas such as air is mixed into the inactive gas after the latter has passed through the collector tube such that deterioration of the adsorbent by oxidation can be prevented.

Growing community of inventors

Kyoto, Japan

Ryutaro Oda