Shimadzu Corporation

Yuki Komori

Hajime Takemoto

Ryo Takechi

Takahiro Saeki

Masayuki Okada

Daiki Fukushima

Shingo Masuda

Kiyonori Koga

Shigenobu Nakano

Yoshihiko Ide

Shinichi Yuki

Shori Kinoshita

Ide Yoshihiko

Takemoto Hajime

Saeki Takahiro

Takechi Ryo

An injector includes an injection device and a round turret provided on a front side of the injection device. A sampler is provided with a vial holder and a conveyance arm. The injector has an accessible structure in which a moving path of the conveyance arm of one sampler arranged on the side of the two injectors for accessing the round turret of each of the two injectors is secured regardless of the size of the round turret, when two injectors are arranged so that the back sides of the injection devices face to each other.

Automatic sample injection system and gas chromatography analysis system

A gas chromatograph main body () comprising an upper surface on which a plurality of injection ports are provided, an injector (A) arranged on the gas chromatograph main body (), for corresponding to an injection port (-to-) optionally selected from a plurality of the injection ports (-to-), and being configured to inject a sample through the corresponding injection port (-to-), and a sampler () for supplying a vial containing liquid to the injector (A). The sampler () is arranged at a position determined according to a position of the injector (A) on the gas chromatograph main body () so as to have a specific positional relationship with the injector (A). The sampler is engaged with the gas chromatograph main body () or the injector (A).

Gas chromatography analysis system

A gas chromatograph includes first and second sample vaporization units, first and second separation columns, first and second carrier gas suppliers, a column oven that contains the first and second separation columns and has a first heater, first and second detectors, a first auxiliary gas supplier that supplies an auxiliary gas to the first separation column and a controller that executes control by increasing a supply pressure of an auxiliary gas applied by the first auxiliary gas supplier to a pressure higher than a pressure during an analysis of a sample and lowering a supply pressure of a carrier gas applied by the first carrier gas supplier to a pressure lower than a pressure during the analysis of the sample such that the supply pressure of the auxiliary gas is higher than the supply pressure of the carrier gas, and sets a first maintenance switch mode in which the first sample vaporization unit is maintainable.

Gas chromatograph, maintenance switch mode setting method and non-transitory computer readable medium storing maintenance switch mode setting program

A vial supply system is provided with: a sampler configured to supply a vial to a predetermined supply destination by a transport arm; a management device communicatively connected to the sampler, the management device being configured to manage a supply operation of the vial by the sampler; and a display device provided so as to be able to communicate with the management device. When a teaching mode for performing teaching for setting a position of a transport arm at the time when a transport arm of the sampler transports the vial to and from the supply destination is started, the management device is configured to cause the display device to display an operation to be performed by a user in the teaching.

Vial supply system and gas chromatography analysis system

A sample injection device () includes a tubular suction and discharge unit () configured to suction a liquid sample (S), contain the sample therein, and discharge the suctioned sample, and at least a portion of an inner wall () of the suction and discharge unit, the portion having the sample contained therewithin, is subjected to a surface treatment (V) to increase an interfacial tension (F) that acts between the inner wall and the sample.

Sample injection device

A sample transfer device includes a sample container holder including at least one jet that ejects air, and the sample container holder holds an upper surface of a sample container in a non-contact state by a negative pressure generated due to horizontally outward flow of the air ejected from the jet.

Sample transfer device

An opening sealing structure is provided with a housing, a step portion, a seal cap, an elastic sealing member, and a cap fixture. The housing has a cap mounting portion having a a cylindrical shape. The step portion is provided on the outer peripheral surface of the cap mounting portion and has a side surface facing the base end side of the cap mounting portion. The side surface of the step portion is inclined along the circumferential direction of the cap mounting portion from the tip end side of the cap mounting portion to the base end side and its inclination angle is smaller on the base end side of the cap mounting portion than on the tip end side. The cap fixture has a cap holding portion movably engaged with the seal cap in a circumferential direction of its outer peripheral surface and an elastic portion connected to the cap holding portion. The elastic portion is provided with a protrusion which engages the side surface of the step portion.

Opening sealing structure, sample vaporization unit, and gas chromatograph

A controller includes a temperature prediction unit. The temperature prediction unit predicts, on the assumption that a refrigerant is fed from a refrigerant feeder, an internal temperature of a column oven based on time interval information and decrement information in a memory. Thus, the temperature prediction unit can accurately predict the internal temperature of the column oven when the refrigerant is fed from the refrigerant feeder. If the refrigerant is fed from the refrigerant feeder when the predicted internal temperature of the column oven is suitable for the analysis operation, the internal temperature of the column oven can be brought closer to an appropriate temperature. As a result, the internal temperature of the column oven can be controlled with precision.

Refrigerant introducer and gas chromatograph

A member linking mechanism, pairable with a gas chromatograph, which has a small and simple configuration, and is capable of linking two members together with a required fastening force even in a limited space. The member linking mechanism includes a first member having a member linking part with an opening at its distal-end surface; a second member to be linked to the member linking part of the first member; an elastic sealing member sandwiched between the first and second members so as to seal the opening of the distal-end surface of the member linking part; and a linking member for linking the first and second members together via pressure. The linking member includes: a linking member body configured to hold an end part, of the second member, adjacent to the first member; and an elastic deformation part provided to the linking member body.

Member linking mechanism and member linking method

When mounting a second assemblyto a first assemblythat is fixed to a main body, the second assemblyengages a second connection elementof a non-rotation unitof the second assemblywith a first connection elementof the first assembly. A rotating partis mounted on the first assemblywhen the rotation unitis rotated. Therefore, an operator can carry out positioning for the second assemblyby connecting the second connection elementof the second assemblywith the first connection elementof the first assembly. The second assemblycan be smoothly mounted on the first assemblythat is fixed to the main body. The second connection elementof the non-rotation unitconnects with the first connection elementof the first assembly, so that the non-rotation unitis prevented from rotating together with the rotation unitduring use and the assemblies that contact the non-rotation unitare protected from damage.

Sample vaporization unit

A member coupling mechanism capable of coupling two members using a necessary tightening force even in a limited space by a small and simple configuration. A member coupling mechanism includes a first member including a member coupling portion having an open apical surface, a second member coupled to the member coupling portion of the first member, an elastic sealing member inserted between the first member and the second member to seal an opening of the apical surface of the member coupling portion, a coupling member that couples the first member and the second member together, and an acting portion that exerts a force on the coupling member.

Member coupling mechanism

A flow controller includes a channel assembly, a pressure sensor, and a pressure control valve. The channel assembly includes a laminated substrate comprised of a plurality of substrates laminated, the laminated substrate having a surface on which a gas inlet and a gas outlet are formed, and having, inside the laminated substrate, a plurality of resistance channels not communicating with one another inside the laminated substrate as internal channels. In the flow controller, the gas inlet and the gas outlet communicate to each other to form a flow rate control channel. The pressure sensor and the pressure control valve are provided on the flow rate control channel. At least one of the resistance channels which is selected to have a desired channel resistance of the flow rate control channel is connected to the flow rate control channel as part of the flow rate control channel.

Flow controller

A gas chromatograph includes a sample introduction portion and a heater block. A contact portion is fit into a first recess of a main body of the sample introduction portion. The heater block is fixed to and positioned with respect to the main body of the sample introduction portion by directly coming into contact with the contact portion provided on the main body of the sample introduction portion. For this reason, the heater block may be securely positioned with respect to the sample introduction portion.

Gas chromatograph

A housing is provided with an internal space for accommodating an insert and a cylindrical cap attachment part provided, at the distal end surface thereof, with an opening part communicating with the internal space. An inclined groove that is inclined from the distal end side to the proximal end side of the cap attachment part along the circumferential direction of the cap attachment part is provided on the outer circumferential surface of the cap attachment part. A cap fixing part for attaching a seal cap to the cap attachment part has a cap holding part for holding the outer peripheral surface of the seal cap and an elastic part connected to the cap holding part. The elastic part is provided with a protrusion that is fit into the inclined groove of the outer peripheral surface of the cap attachment part.

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Kyoto, Japan

Yuki Komori