Abstract: A gas chromatograph includes an oven that has a first heater device and a second heater device. The first heater device and the second heater device are connected in series when a voltage of a power supply is a first voltage, and are connected in parallel when the voltage of the power supply is a second voltage that is lower than the first voltage. A power controller includes a first control device that controls ON/OFF of supply of power to the series-connected first heater device and second heater device or ON/OFF of supply of power to the parallel-connected first heater device, and a second control device that controls ON/OFF of supply of power to the parallel-connected second heater device. A controller adjusts a duty ratio of supply of power to the parallel-connected first heater device and second heater device by controlling the first control device and the second control device when the voltage of the power supply is the second voltage.

Abstract: A sample injector is configured to determine an amount of movement of a piston for injecting a sample into an analyzer based on a preset amount of the sample to be injected into the analyzer and information of a first identification code about an internal volume read by an optical sensor.

Abstract: A sample injector is configured to determine an amount of movement of a piston for injecting a sample into an analyzer based on a preset amount of the sample to be injected into the analyzer and information of a first identification code about an internal volume read by an optical sensor.

Abstract: A sample injector is configured to determine an amount of movement of a piston for injecting a sample into an analyzer based on a preset amount of the sample to be injected into the analyzer and information of a first identification code about an internal volume read by an optical sensor.

Abstract: Optical waveguide paths to observe a sample on a sample holder from a plurality of directions while guiding an image of light in each direction which is emitted out of the sample toward a direction of a two dimensional detector via a main imaging lens include an optical waveguide path which never receives the light directly from the sample. The optical waveguide path which never receives the light directly from the sample forms an image of the sample within a substantial focus range of the main imaging lens, and includes optical elements arranged such that a light beam after formation of the image proceeds toward a direction of the main imaging lens. Optical elements on at least one optical waveguide path are those for forming real images. Therefore, the main imaging lens images the sample and those real images in block on the two dimensional detector.

Abstract: Optical waveguide paths to observe a sample on a sample holder from a plurality of directions while guiding an image of light in each direction which is emitted out of the sample toward a direction of a two dimensional detector via a main imaging lens include an optical waveguide path which never receives the light directly from the sample. The optical waveguide path which never receives the light directly from the sample forms an image of the sample within a substantial focus range of the main imaging lens, and includes optical elements arranged such that a light beam after formation of the image proceeds toward a direction of the main imaging lens. Optical elements on at least one optical waveguide path are those for forming real images. Therefore, the main imaging lens images the sample and those real images in block on the two dimensional detector.

Abstract: An automatic synthesis machine is used for synthesis of compounds using a plurality of vessels, allowing reagents to chemically react with each other. The automatic synthesis machine comprises a selection means for selecting a specific vessel among a plurality of vessels, a display device for displaying the vessel selected by the selection means in a manner such that it can be identified, together with the operation contents (suction and injection) related to the selected vessel, and an analysis means for analyzing a protocol prescribing a series of operational procedures for synthesis of compounds and picked-out commands related to the selected vessel from the protocol.