Shimadzu Corporation

Takao Okado

Yosuke Iwata

Michiaki Owa

Kazuo Yamauchi

Chihiro Kora

Keisuke Iso

A component extraction apparatus includes a rack placement part, a heater, an extraction medium supply part, a needle assembly, and a temperature sensor. When the container rack is mounted on the rack placement part, a heater is configured to heat the sample containers in direct or indirect contact with sample containers held by the container rack. The needle assembly holds a needle with a tip thereof pointing downward, and the needle being configured to connect a flow channel by inserting the tip thereof into a needle port provided on an upper surface of each of the sample containers. The temperature sensor is included in the needle assembly and is configured to detect a temperature of the upper surface of any one of the sample containers when the tip of the needle is inserted into the needle port of the one of the sample containers.

Component extraction apparatus

Provided is a component extraction device for eluting a component in a sample into a supercritical fluid to extract the component from the sample. The component extraction device includes: a container rack including a plurality of sample container holding parts; a rack mounting stand including a mounting section on which the container rack is mounted; a plurality of heating blocks fixedly disposed on a mounting face of the mounting section at positions respectively corresponding to the plurality of sample container holding parts; a plurality of temperature sensors each configured to detect a temperature of each of the plurality of heating blocks; and a control unit configured to respectively control the plurality of heating blocks, based on results of detection by the plurality of temperature sensors.

Component extraction device

A pressure control valve is provided with a pressure control block. The pressure control block has a pressure control block having an opening portion provided on one outer surface, a pressure control surface provided as a plane at a bottom portion of the opening portion, and two internal channels having openings at the respective end portions of the pressure control surface. A sheet-like valve body having elasticity and arranged so as to cover the pressure control surface is provided in the opening portion of the pressure control block. A valve body driving portion is provided on a side opposite to the pressure control surface with the valve body interposed therebetween that adjusts an amount of a gap between the valve body and the pressure control surface by pressing the valve body in a direction perpendicular to the pressure control surface. The pressure control surface has higher hardness than a hard material.

Pressure control valve and supercritical fluid chromatograph

A column oven that may enable a heat block to provide the best temperature distribution, and increase temperature evenness of a column is provided. In a column oventhat heats or cools a heat blockcontacting a columnand adjusts temperature of the columnthrough heat transmission from the heat block, a plurality of temperature adjustment bodiesandis separately disposed along the longitudinal direction of the heat block, and heats or cools the heat block, a plurality of temperature sensorsandmeasuring the temperatures of the heat blockadjacent to the temperature adjustment bodiesandis also disposed, and the corresponding temperature adjustment bodiesandare controlled independently according to the temperatures measured by the temperature sensorsand

Column oven

A liquid chromatograph device was provided wherein operations inside a thermostatic chamber can be safely performed even while a heat block is being heated. The liquid chromatograph device comprises: a thermostatic chamber; outer doors and that are disposed at the front surface of the thermostatic chamber; a heat block; heater for heating said heat block; temperature sensor for the heat block; flowing means for flowing air between the inside and outside of the thermostatic chamber; a control means for controlling the supply of power to the heater based on the result of the temperature sensor; and an inner door between the outer door and the heat block, the inner door comprising a hollow inner door main body, a heat-insulating material that is housed within the inner door so as to form an air chamber between the heat-insulating material and the surface of the outer door of the inner door main body and inlet/outlet slits and that are formed in the inner door main body. These slits and the flowing means causes air within the inner door to flow out, thus reducing the temperature of the inner door.

Liquid chromatograph device

A shift of mass axis that occurs when the temperature of a vacuum container consisting of a vacuum chamber () and IT block () or that of a TOF power unit () for applying an ion acceleration voltage is changed, is respectively measured beforehand, and parameters expressing a transfer function based on its response are stored in a transfer function memory (). During an analysis, a mass shift predicting operation section () estimates the current shift length of the mass axis from the current temperatures of the IT block () and TOF power unit () obtained by first and second temperature sensors (and) as well as from the two transfer functions stored in the memory (). A mass shift correcting section () corrects the mass axis of the mass spectrum according to the estimated shift length. Thus, if the ambient temperature suddenly changes, the shift of the mass axis of the mass spectrum due to the temperature change is corrected with high accuracy, so that a mass spectrum with a high level of mass accuracy can be created.

Growing community of inventors

Kyoto, Japan

Takao Okado