Shimadzu Corporation

Kyoto Institute of Technology

Shintaro Yamamoto

Tetsuya Ueda

Gouki Haida

A fluid chromatograph includes a flow path switching part configured to switch to one of states including a sampling state in which the measuring pump is connected to a proximal end side of the sampling flow path, a total volume introduction state in which the mobile phase sending part is connected to a proximal end side of the sampling flow path and the needle port and the analysis flow path are connected to each other, an injection state in which the measuring pump is connected to the proximal end side of the sampling flow path and the needle port and the second sample loop are connected to each other, and a loop introduction state in which the mobile phase sending part is connected to one end side of the sample loop and the analysis flow path is connected to the other end side of the sample loop.

Fluid chromatograph

A liquid carbon dioxide delivery pump with a pump head including a pump chamber and a refrigerant channel different from a channel passing through the pump chamber, a circulation channel for refrigerant, a refrigerant pump arranged on the circulation channel, the refrigerant pump for causing the refrigerant to circulate through the circulation channel, and a cooling section arranged on the circulation channel, at a position away from the pump head, the cooling section being configured to cool the refrigerant passing through the circulation channel. The liquid carbon dioxide delivery pump further has a temperature sensor for detecting an ambient temperature of the pump head or a temperature of the pump head, and a refrigerant pump control section for adjusting, based on a detection signal of the temperature sensor, a flow rate of the refrigerant pump such that liquid carbon dioxide flowing through the pump head at a specific temperature.

Liquid carbon dioxide delivery pump, and supercritical fluid chromatograph provided with the same

A reflective impedance element is connected to a port of a composite right/left-handed transmission line, and operates at a predetermined operating frequency so that an impedance when the reflective impedance element is seen from the port becomes a pure imaginary number jB. A reflective impedance component is connected to a port of the composite right/left-handed transmission line, and operates at the predetermined operating frequency so that an impedance when the reflective impedance element is seen from the port becomes &#x2212;jB.

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Kyoto, Japan

Shintaro Yamamoto